How Bryce Harper Is Training and Fueling for Year 15 in the MLB

As Bryce Harper enters his 15th Major League Baseball season, his focus isn’t on lifting heavier—it’s on training smarter to stay explosive, durable, and available for all 162 games.

Shane Wallen, CSCS, Harper’s performance coach, says longevity at this level comes down to precision programming, real-time adjustments, and fueling that supports performance instead of sabotaging it.

“At this stage it’s about identifying what he needs,” Wallen says. “How can we bring out more of what makes him special and allow him to keep doing it at an extremely high level?” That means prioritizing power, speed, and durability over brute strength—and treating recovery as part of the training plan.

Why Bryce Harper’s In-Season Training Focuses on Power and Movement Quality

Wallen says Harper’s in-season programming shifts away from chasing maximal loads and leans toward velocity, mobility, and rate of force development.

“It doesn’t always mean high-force training,” Wallen explains. “Sometimes it’s mobility, movement quality, or speed adaptations. It has to be extremely fluid throughout the season.” A condensed version of Harper’s in-season lifting plan reflects that philosophy:

Bryce Harper’s Explosive Power Warmup Routine

This opening block primes the nervous system and sharpens explosive movement patterns before heavier or more demanding work begins.

• Resisted Lateral Bound (2×3 each side): Explosive side-to-side jumps against resistance to build lateral power and hip stability for quick directional changes. Stand tall, load one hip, then explosively jump sideways against band tension—using a durable option like the REP Fitness Resistance Band—landing softly on the opposite leg with control before resetting for the next rep.
• Rolling Kettlebell Arm Bar (2×6 each side): Controlled rolling shoulder work under load to improve thoracic mobility and shoulder stability. Hold a kettlebell locked out overhead, roll slowly onto your side while keeping the arm vertical, then reverse the movement under control.
• Step-Back Medicine Ball Scoop Toss (2×3 each side): A rotational throw driven by the hips to train explosive power for hitting. Step back into your rear hip, rotate powerfully through your torso, and explosively toss the medicine ball forward or into a wall.

How Bryce Harper Trains Force and Velocity In Season

This phase emphasizes producing force quickly—maintaining lower-body power without accumulating unnecessary fatigue during the season.

• Belt Squat (3×4 at 0.80–0.90 m/s): A belt squat lets you load your legs without placing a barbell on your back. You attach a belt around your hips (clipped to weight plates or a machine), sit back into a squat, and drive up explosively through your feet while keeping your chest tall. A purpose-built option like the REP Fitness Belt Squat Belt is designed to hold the load securely and comfortably around your hips.
• Band-Resisted Countermovement Jump (3×3): Vertical jumps against band tension to enhance rate of force development and elastic power. Lower quickly into a quarter squat against band tension, then explode straight up as high and fast as possible.
• Front-Foot Elevated Cable Chop (2×8 each side): A rotational core movement that reinforces force transfer and anti-rotation strength. From a split stance with your front foot elevated, rotate your torso and pull the cable diagonally across your body under control.

The Stability Exercises Harper Uses to Prevent Injury

The final block reinforces joint stability, rotational control, and muscular balance to support durability over a long season.

• Split-Stance Landmine Press (3×5 each side): A staggered-stance press that builds shoulder strength while reinforcing balance and core control. In a staggered stance, press the barbell up and slightly forward while bracing your core and keeping your ribs down. If you train at home or want a cleaner setup in the gym, a free-standing landmine base like REP Fitness’ Free-Standing Landmine makes it easy to drop this movement into your program without needing a rack attachment.
• Ipsilateral Rotational Cable Row (3×6 each side): A pulling movement that strengthens scapular stability and rotational strength. Stand sideways to the cable, pull the handle toward your torso while rotating through your hips and upper back.
• Staggered-Stance Dumbbell RDL (2×6 each side): A split-stance hinge targeting hamstrings and glutes while improving single-leg control. With one foot slightly back, hinge at the hips while keeping your spine neutral, lowering the dumbbells until you feel a stretch in the front leg’s hamstring.

“We lean toward the velocity side of the curve in season,” Wallen says, noting that heavier strength work is touched strategically to maintain qualities without accumulating fatigue.

Related: Do Weighted Vests Really Work? A Strength Coach Breaks Down the Benefits

The Mid-Workout Fuel Bryce Harper Uses to Avoid Energy Crashes

Three-hour sessions demand more than water and willpower. “You can’t wait until after to refuel or you’ll hit a wall,” Wallen says.

Harper eats Maui Nui Venison Sticks during training, each delivering roughly 9–10 grams of protein with zero sugar. Wallen says that provides sustained energy without the blood sugar spikes common in traditional sports snacks.

“It’s whole-food protein that works with his body instead of against it,” he says.

How to Dress and Snack for Pro-Athlete-Level Performance

If you’re training with the same discipline and precision as a pro athlete, your clothing and snack choices should support movement, recovery, and long days—not work against them.

• Travel days demand gear that’s comfortable, breathable, and easy to layer. The Poncho Outdoors Ultra-Light Sheepshead Shirt delivers built-in sun protection and sweat-wicking performance fabric without extra bulk, helping you stay comfortable through airport terminals or unpredictable weather swings.
• Comfortable structure is key for travel-heavy schedules.Collars & Co's Maverick Travel Blazer combines stretch fabric with a tailored look, allowing you to move freely on flights and transition straight into meetings or post-game events.
• Mobility-friendly pants simplify long training days. The Vuori Meta Pant Classic Fit blends technical performance fabric with clean styling, giving you the flexibility needed for warmups and recovery sessions without looking overly athletic.
• Footwear stability starts from the ground up. For athletes focused on balance and force transfer, a stable training shoe can make every rep cleaner. NOBULL's Drive Mesh offers a lightweight, breathable upper with a responsive yet stable base—ideal for lateral drills, rotational work, and explosive lifts like landmine presses or resisted bounds.
• Steady energy starts with smarter snack choices. While Harper leans on venison mid-session, Aloha's Lemon Cashew Protein Bar offers a portable plant-based alternative with simple ingredients that can help maintain on-the-go energy.
• Recovery days still require smart layering. The Homage Philadelphia Phillies ’19 Hoodie provides soft, easy comfort for cooldowns, travel, or cooler stadium nights—while letting fans rep Harper’s team.

Fifteen seasons in, Harper’s edge isn’t mystery. It’s disciplined execution—every rep, every bite, every day.

“It’s not glamorous,” Wallen says. “But that’s where the gains actually happen.”

Related: Trainer: Why Men Over 40 Should Be Doing Box Squats for Long-Term Strength