Building the Engine: Roglič’s Endurance Foundation

Primož Roglič’s unique path from world-class ski jumper to two-time Vuelta a España champion and Olympic gold medalist in the time trial reveals an athlete who understands the science of aerobic development better than almost any of his peers. His endurance training follows a meticulously periodized structure, with winter months dedicated almost exclusively to building an immense aerobic engine. During November through January, Roglič logs five- to six-hour rides in the Basque Country hills or on the roads around his home in Monaco, keeping his heart rate firmly in Zone 2 — typically between 120 and 140 beats per minute depending on his age and fitness level.

These long sessions serve a specific physiological purpose: maximizing mitochondrial density and expanding capillary networks within his working muscles. The result is that his muscles become exceptionally efficient at oxidizing fat for fuel, preserving precious glycogen stores for the decisive attacks and surges that define Grand Tour racing. Roglič uses a power meter paired with a heart rate monitor on every ride, staying within precise wattage ranges prescribed by his long-time coach Marc Lamberts. Lamberts designs each session to mirror race demands — prolonged steady climbs, rolling terrain that requires constant pacing adjustments, and extended periods of tempo work that teach the body to hold a high output without tipping into anaerobic overload.

Fueling during these foundation rides is a science in itself. Roglič consumes 60 to 90 grams of carbohydrates per hour through a carefully rotated selection of gels, chews, rice cakes, and sports bars. This deliberate nutrition strategy does more than prevent bonking; it trains his gastrointestinal system to absorb nutrients under the stress of prolonged exertion. For a rider targeting three-week Grand Tours where gut distress can derail an entire campaign, this gut training is as important as any interval session.

Off-Season Volume and Base Building

During the off-season, Roglič reallocates his training focus dramatically. Total weekly volume can reach 25 to 30 hours, with the majority of that time spent at low intensity. He frequently rides with a heart rate monitor clamped to his handlebars, checking it only sparingly, trusting the feel that years of racing have honed. These rides often include two to three hours of steady climbing at gradients between 4 and 7 percent — a gradient range that recruits type I muscle fibers without excessive mechanical stress on the knees.

Roglič also uses these base miles to refine his bike position. Small adjustments to saddle height, reach, and bar drop are tested over multiple long rides before being locked in for the race season. His team, now Visma–Lease a Bike, employs a full-time bike fit specialist who works with him during training camps in Spain and Monaco. The goal is a position that balances aerodynamic efficiency with the ability to sustain power for hours without soft tissue compression or lower back strain.

High-Intensity Interval Training and Explosive Power

Endurance forms the foundation, but Roglič’s ability to win time trials and devastating summit finishes comes from his high-intensity interval work. Twice per week during build phases, he performs short, maximal efforts ranging from 30 seconds to five minutes. A staple session involves four sets of four minutes at VO₂ max intensity — roughly 120 percent of his functional threshold power — with four minutes of easy spinning between sets. Another common workout features repeated 30-second sprints with three minutes of recovery, designed to improve neuromuscular coordination and explosive leg speed.

The session that most fans associate with Roglič’s signature style is a 20-minute effort at threshold power, followed immediately by three to five all-out 30-second accelerations with full recovery between each. This sequence simulates the final kilometers of a mountain stage where riders attack and then must sustain a punishing tempo to stay away. Cyclingnews has reported that Roglič uses a gradient-based indoor trainer — often a Wahoo KICKR with elevation simulation — to replicate the exact pitch profiles of climbs he will face in races like the Tour de France and Vuelta a España.

His HIIT sessions are not static workouts; they evolve with the season. Early in the build phase, intervals are longer and less intense — three-minute efforts at 105 percent of threshold. As race season approaches, the intervals shorten and the intensity climbs. By June, Roglič is regularly performing efforts that hit 140 to 150 percent of threshold, mimicking the explosive surges needed to shed rivals on the final ramps of a mountain stage.

Strength and Core Work

The old belief that elite cyclists should avoid weight training has been thoroughly debunked by riders like Roglič. He integrates strength work year-round, with the volume and intensity shifting depending on the phase of the season. In the gym, he focuses on compound movements — back squats, conventional and Romanian deadlifts, walking lunges, and step-ups — all performed with moderate loads and higher rep ranges of 12 to 15 per set. This approach builds muscular endurance without adding body mass that could compromise his power-to-weight ratio.

Single-leg exercises receive special emphasis. Bulgarian split squats, single-leg Romanian deadlifts, and single-leg hip thrusts help correct the asymmetries that develop from thousands of hours spent in the saddle. These imbalances, if left unchecked, can lead to knee pain, IT band syndrome, and lower back issues. Roglič’s gym sessions also include pistol squats and lateral lunges to strengthen the stabilizing muscles of the hips and gluteus medius — muscles that are often underdeveloped in cyclists but critical for generating power without wasted lateral movement.

Core stability is non-negotiable for Roglič. He performs planks, side planks, reverse planks, and rotational exercises such as cable woodchoppers and medicine ball twists three times per week. A strong core allows him to maintain an aggressive aerodynamic position on the bike — hands on the drops, elbows bent, back flat — for extended periods without fatigue or back pain. During training camps, his team incorporates Pilates sessions and yoga flow classes into the weekly schedule, focusing on hip mobility, thoracic spine extension, and deep core engagement. These practices help offset the constant flexion of the cycling position, reducing the risk of disc issues and maintaining flexibility for those moments when he needs to stretch out of the saddle for a hard acceleration.

Periodization and Race-Specific Preparation

Roglič’s year is divided into five distinct training blocks: base phase from November through January, build phase from February through March, early racing from April through June, peak phase for Grand Tours from July through August, and a recovery and transition period from September through October. Each block has specific goals, volume targets, and intensity distributions that coach Marc Lamberts adjusts based on Roglič’s physiological data, race results, and subjective feedback.

During the build phase, threshold work becomes the primary focus. Roglič increases the proportion of time spent at functional threshold power — typically three 20-minute intervals at 90 to 95 percent of FTP, or longer Sweet Spot sessions of two times 30 minutes at 88 to 93 percent. He also introduces race simulations, participating in one-week stage races such as Paris–Nice, the Volta a Catalunya, and the Tour of the Basque Country. These events serve multiple purposes: they sharpen his race instincts, test his form against live competition, and allow him to refine positioning skills and teamwork with his domestiques.

Altitude training plays a pivotal role in Roglič’s preparation for Grand Tours. He spends two to three weeks at elevations between 2,000 and 2,500 meters in locations such as Sierra Nevada in southern Spain or the Teide volcano on Tenerife in the Canary Islands. The physiological adaptations from this exposure — increased erythropoietin production, elevated red blood cell count, and improved oxygen delivery to working muscles — give him a meaningful advantage when racing at altitude in the high mountains of the Tour or Vuelta. Sports Journal notes that Roglič’s hematocrit levels typically rise by 3 to 5 percent after these altitude camps, a difference that translates directly into sustained power output on long Alpine or Pyrenean climbs.

Before each altitude camp, Roglič undergoes a series of blood tests to establish baseline values for hemoglobin, ferritin, vitamin D, and testosterone. He adjusts his iron intake during and after the camp to support red blood cell production, taking 100 to 200 milligrams of elemental iron per day under medical supervision. His team monitors his recovery closely during altitude exposure, as sleep quality often suffers at elevation. Roglič uses supplemental oxygen at night during the first few days of each camp to mitigate the initial drop in oxygen saturation and accelerate adaptation.

Race Simulation and Technical Drills

Roglič devotes significant training time to race-specific simulations that go beyond physical conditioning. He practices paceline rotations with his teammates, performing fast-switching drills where riders take short pulls at threshold power before peeling off. He drills descending technique on technical mountain roads, spending full days riding the same 15-kilometer descent multiple times to memorize braking points, apex speeds, and lean angles. This preparation paid off during his 2023 Giro d’Italia stage win, where his descending confidence allowed him to gap rivals on a treacherous wet descent.

Time trial preparation includes session-after-session on his specialized TT bike, focusing on aerodynamic efficiency, pacing strategies, and power output at varying gradients. Roglič uses a SRM power meter and a head unit that displays gradient-adjusted target power, allowing him to maintain optimal effort whether climbing or descending. He also practices the TT start — a high-power burst followed by a quick transition to a sustainable effort — repeatedly until the sequence becomes automatic.

Recovery: The Unsung Hero of Roglič’s Routine

Roglič treats recovery with the same rigor that he applies to training. He understands that physiological adaptation happens not during the workout itself but in the hours and days after. After a hard ride or interval session, he consumes a recovery shake within 30 minutes — a blend of protein and carbohydrates in a roughly 3:1 ratio, typically containing 30 to 40 grams of protein and 90 to 120 grams of carbohydrates. He follows this with a cool-down period of gentle spinning on the indoor trainer for 10 to 15 minutes, gradually lowering his heart rate and promoting venous return.

Compression boots are a staple of his post-ride routine. Roglič uses NormaTec or similar pneumatic compression devices for 30 minutes, which enhance blood flow, reduce inflammation, and accelerate the clearance of metabolic waste products from his legs. He also uses foam rollers and massage guns on his quadriceps, hamstrings, glutes, and calves, spending particular attention on the adductors and iliotibial bands, which tend to tighten from the cycling motion.

Sleep and Napping

Sleep is the single most important recovery tool in Roglič’s arsenal. He aims for a minimum of nine hours of sleep per night, with a consistent bedtime and wake-up time even during race periods. His bedroom is optimized for sleep — dark blackout curtains, a cool temperature between 16 and 18 degrees Celsius, and complete removal of electronic devices. He uses a weighted blanket, which research suggests may promote deeper sleep by providing gentle pressure stimulation that increases serotonin and melatonin levels.

Afternoon naps are a non-negotiable part of his routine, especially during training camps and Grand Tours. Roglič takes a 20-to-30-minute power nap between 1:00 and 3:00 p.m., timing it to avoid interfering with his nighttime sleep. His team employs wearable sleep trackers like Oura rings to monitor his sleep stages — specifically deep sleep and REM percentages — and adjust training load or recovery protocols if his numbers dip below optimal ranges. If the data show insufficient deep sleep after a hard training day, Roglič might replace the following day’s intense workout with an easy recovery ride or even a complete rest day.

Physiotherapy, Massage, and Active Recovery

Daily physiotherapy session s are standard for Roglič during races and training camps. His physiotherapist focuses on trigger point release in the glutes, piriformis, and lower back, along with myofascial stretching of the hip flexors and thoracic spine. Joint mobility work targets the hips, ankles, and shoulders, areas that can stiffen from maintaining a static cycling position for hours. Deep tissue massages are scheduled three times per week, with the therapist working to break up adhesions, improve circulation, and reduce muscle tension without causing excessive soreness.

Active recovery rides are another pillar of his approach. On designated rest days, Roglič spins gently on a flat route for 60 to 90 minutes, keeping his heart rate below 120 beats per minute. This light activity flushes lactic acid from the muscles, maintains blood flow to the legs, and promotes the transport of nutrients to recovering tissues without adding significant fatigue or stress. He also incorporates walking and light stretching on his complete rest days, avoiding the temptation to stay sedentary for extended periods, which can stiffen the joints and delay recovery.

Roglič uses contrast therapy — alternating hot and cold water immersion — to accelerate recovery after the hardest training days. The typical protocol involves three minutes in a hot bath or sauna followed by one minute in a cold plunge at 10 to 12 degrees Celsius, repeated three to four times. This alternation promotes vasodilation and vasoconstriction, flushing metabolic waste products and reducing inflammation. He avoids cold water immersion immediately after strength training, however, as some evidence suggests it may interfere with the muscle protein synthesis signaling pathways that drive adaptation.

Nutrition: Precision Fueling for Performance

Roglič works with a dedicated sports nutritionist who tailors his diet to the specific demands of each training phase. During base training, his diet emphasizes high carbohydrate intake, moderate protein, and relatively low fat, with a focus on whole foods that provide vitamins, minerals, and antioxidants. His typical breakfast includes oatmeal with berries, eggs, and a side of yogurt. Lunch and dinner revolve around lean proteins — chicken, fish, or lean beef — paired with generous portions of rice, potatoes, or pasta and a variety of vegetables. Healthy fats from olive oil, avocados, and nuts are included in controlled amounts, supporting hormone function and inflammation reduction without contributing excess calories.

During Grand Tours, Roglič consumes between 6,000 and 8,000 calories per day, spread across six to eight meals and snacks. His nutrition team prepares customized bottles with precise carbohydrate and electrolyte concentrations, ensuring that he meets his fueling targets even on the longest, hottest stages. The typical race bottle contains 30 to 60 grams of carbohydrates and 500 to 800 milligrams of sodium per liter, with the exact formulation adjusted based on the stage profile and weather conditions.

Gut training is an ongoing process. During winter base rides and early season training camps, Roglič practices consuming 90 to 120 grams of carbohydrates per hour — a rate that matches the highest end of what elite cyclists can absorb. This training involves using multiple transportable carbohydrates (glucose and fructose in a 1:0.8 ratio) to maximize intestinal absorption, along with repeated practice to condition his stomach to handle the volume without distress. By the time he reaches the Tour de France, his gastrointestinal system can tolerate the aggressive fueling strategy required to sustain peak power output across three weeks of racing.

Supplementation Strategy

Roglič’s supplementation protocol is evidence-based and targeted. Vitamin D is a priority during winter months when sun exposure is limited, helping maintain immune function and bone health. Omega-3 fatty acids from fish oil supplements support the reduction of systemic inflammation, which can accumulate during high-volume training blocks. Iron supplementation is timed carefully around altitude camps, with Roglič taking 100 to 200 milligrams of elemental iron daily for four to six weeks before and after each high-altitude exposure to support hemoglobin production. He also uses beetroot juice concentrate as a natural nitric oxide booster before time trials, a practice supported by research demonstrating improved oxygen delivery and muscular efficiency following nitrate supplementation.

Roglič avoids caffeine during early training sessions, reserving it for race days and the most intense workout of the week. This strategic caffeine use preserves its stimulant effect — both the central nervous system activation and the increase in fat oxidation that spares glycogen — for the moments when it can have the greatest impact on performance. During Grand Tours, he consumes caffeine in the final hour of key stages, often through a gel or a bottle of caffeinated sports drink, timing the dose to peak exactly as the decisive attacks are made.

Mental Preparation and Race Tactics

Roglič’s discipline extends beyond the physical realm. He practices mental preparation techniques that allow him to perform under the intense pressure of Grand Tour competition. Visualization is a regular part of his routine, particularly in the days leading up to a critical stage or time trial. He mentally rehearses every aspect of the effort — the start, the pacing, the transitions, the final kilometer — building neural pathways that make his actions more automatic when the moment arrives. This cognitive rehearsal also helps him manage anxiety, replacing uncertainty with a clear mental model of what he needs to do.

He maintains a close, communicative relationship with his sports director and teammates. Team meetings before each stage focus on race dynamics, wind direction and positioning strategies, feeding zones, and the roles each rider will play. Roglič has emphasized in interviews the importance of trust in his domestiques, especially during chaotic flat stages where shelter from the wind and support at the team car are essential for saving energy. He credits this tactical preparation with helping him avoid the crashes and splits that often eliminate race contenders in the first week of a Grand Tour.

Coping with Setbacks

Roglič’s career has been marked by spectacular victories and devastating defeats, most notably the 2020 Tour de France where he lost the yellow jersey to Tadej Pogačar on the final time trial. His response to that loss reveals the mental resilience that underpins his success. He uses journaling as a tool to process disappointment, writing about what he learned from the experience and how he can apply those lessons to future races. He works with a sports psychologist during difficult periods, addressing the emotional impact of setbacks and developing strategies to maintain motivation and focus. Research in sports psychology supports this approach, showing that athletes who process defeat constructively rather than suppressing it are more likely to bounce back stronger.

Roglič also practices what sports psychologists call counterfactual thinking — examining what went wrong and identifying specific adjustments. After the 2020 Tour, he and his team analyzed every decision, from the team tactics on the final mountain stages to his pacing strategy in the time trial. The result was a refined approach that made him a more complete Grand Tour tactician, capable of both aggressive attacking and calculated patience when the situation demands it.

Injuries and Downtime Management

Despite his careful preparation, Roglič has suffered significant injuries — broken bones from crashes, muscle strains, and overuse issues. His rehabilitation protocol is structured and methodical. Immediately after an injury, he follows the RICE protocol (rest, ice, compression, elevation) to minimize swelling and inflammation. As soon as it is safe to do so, he begins light cycling on a stationary bike with zero resistance, keeping the joints moving and maintaining blood flow to the injured area without applying weight-bearing stress.

Physiotherapy during injury recovery includes shockwave therapy for chronic tendonitis, particularly in the patellar and Achilles tendons, and dry needling for stubborn muscle tension. He uses custom orthotics in his cycling shoes to address any foot misalignment, which can cause knee pain and alter pedaling mechanics. His bike fit is adjusted during recovery, often with small changes to saddle height or cleat position to offload the healing structures while maintaining effective power transfer.

The return to full training follows the principle of progressive overload, with Roglič never increasing weekly volume by more than 10 percent. This conservative approach reduces the risk of re-injury and allows his tissues to adapt to the increasing load. Heart rate and power data are monitored closely during this phase, with Roglič often training at lower intensities than usual to allow his body to rebuild capacity without excessive stress. He supplements his cycling with swimming and strength training that avoids the injured area, maintaining overall fitness while the specific injury heals.

Technology and Data in Roglič’s Training

Data drives many of Roglič’s training decisions. He uses a SRM power meter and a cycling computer that records every second of every ride, allowing coach Marc Lamberts to analyze power output across different time intervals and gradients. Heart rate data is used alongside power to monitor cardiovascular stress and ensure that recovery rides stay within their intended low-intensity zone. His training platform of choice, TrainingPeaks, gives Lamberts the ability to upload workouts, track adherence, and adjust future sessions based on real-time feedback.

Roglič uses indoor training platforms like Zwift and Rouvy during poor weather or when he needs to complete specific intervals in a controlled environment. These platforms provide structured workouts that hold him to precise power targets, eliminating the variability of outdoor riding. He also uses the gradient simulation feature on his Wahoo KICKR to practice pacing on climbs with specific profiles — rehearsing, for example, the opening 15 minutes of the Alpe d’Huez ascent before he arrives at the Tour de France.

Sleep and recovery are monitored with wearable technology, including an Oura ring that tracks sleep stages, heart rate variability, resting heart rate, and body temperature. Roglič and his team use this data to make daily adjustments to training load. If his heart rate variability is below baseline after a hard day, indicating incomplete recovery, the next day’s training is modified — replacing a high-intensity session with an easier endurance ride or an active recovery session. This approach minimizes the accumulation of fatigue and reduces the risk of overtraining syndrome.

Team Support and the Ecosystem Around Roglič

Roglič’s success would not be possible without the ecosystem of support around him. Coach Marc Lamberts designs every aspect of his training periodization, monitors his data daily, and adjusts the plan based on both objective metrics and Roglič’s subjective feedback. The team’s director sportif manages race tactics and strategy, coordinating the domestiques who provide shelter, food, and support during stages. The team mechanics and soigneurs keep his bikes in perfect condition and ensure his nutrition and hydration are optimized before, during, and after every effort.

The medical team — team doctors, physiotherapists, and massage therapists — manage his health, recovery, and injury prevention. Blood tests every three to four weeks monitor key biomarkers such as hemoglobin, ferritin, vitamin D, and testosterone, allowing the medical staff to intervene with supplements or medications as needed. The mental health support from a sports psychologist provides an additional layer of resilience for the emotional demands of professional cycling. Visma–Lease a Bike team culture emphasizes this integrated support system, recognizing that the marginal gains from each specialist compound into a meaningful advantage over the length of a Grand Tour.

Lessons for Competitive Cyclists

While few cyclists will race at Roglič’s level, the principles that underpin his training are applicable to riders of any ability. The foundation of his program is consistent, volume-appropriate endurance training supported by structured intensity, dedicated strength work, and a recovery protocol that treats rest as an active component of progress. Specific takeaways include the value of periodizing the season into distinct phases, the importance of fueling adequately during as well as after rides, and the need to monitor recovery as rigorously as training load.

Aspiring cyclists can adopt Roglič’s approach to sleep hygiene — prioritizing consistent bedtimes, cool dark rooms, and at least eight hours of sleep per night. They can integrate simple strength work like squats, lunges, and planks into their weekly routine to build the core stability and muscular balance that supports efficient pedaling and injury prevention. They can practice their own version of periodization, breaking the year into base, build, and race phases even within a recreational schedule.

Perhaps the most important lesson from Roglič is the discipline of marginal gains. Every session, every meal, every sleep hour is accounted for not because it is obsessively monitored but because each contributes directly to the cumulative effect of elite performance. Training hard is only half the battle; recovering smarter is the other half. By integrating these principles — consistent volume, thoughtful intensity, proper fueling, prioritized sleep, and integrated strength work — any cyclist can improve their endurance, prevent injury, and reach closer to their own potential.

Sources: Cyclingnews, Visma–Lease a Bike Team, Sports Journal, Essa Sports Psychology