High School Baseball In-Season Workout Program PDF: Free 2-Day/Week Plan to Maintain Strength Through Playoffs
Download the complete in-season program — both workouts, the tournament week protocol, game-day activation, and the full VeloRESET arm care protocol in one printable PDF.
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The In-Season Training Problem Most High School Players Get Wrong
There are two failure modes for in-season lifting at the high school level, and both cost players in the playoffs.
Failure Mode 1: Stop lifting completely. The logic sounds reasonable — games are tiring, practice is long, why add more stress? The problem is that strength adaptations fade significantly within 2–3 weeks of detraining. A 2013 study in the Journal of Strength and Conditioning Research found that in-season maintenance training using just 1–2 sessions per week at reduced volume (but maintained intensity) was sufficient to preserve off-season strength gains across a competitive season in collegiate athletes.1 Two sessions per week is the minimum effective dose. Zero is not a strategy.
Failure Mode 2: Keep training like the off-season. Four days a week at high volume with heavy lower body work the day before a start is how athletes show up to games with flat legs, compromised reaction time, and arm soreness that accumulates into injury by April. The volume has to drop in-season — but intensity does not.
This program threads the needle: 2 days per week, 3 sets instead of 4–5 on main lifts, 75–82% 1RM (same loads as late Phase 1 / early Phase 2 of your off-season program). High enough to maintain neural adaptations and muscle mass. Low enough to recover fully before the next game.
The Two-Workout Structure
The program runs on two distinct training days that you schedule around your game calendar each week:
Day A — Full Body Strength (45–60 min)
Schedule: Monday or Tuesday | Away from game days | Never within 48 hours of pitching
Back squat, Romanian deadlift, KB swing, bench press, DB row, pull-ups, box jumps, med ball rotational throws, Pallof press. The full-body session maintains the strength and power expression you developed during Phase 2 and 3 of the off-season program. Three sets per main lift, 6–8 reps, 75–82% 1RM.
Pitchers: if you threw in the last 48 hours, skip all lower body work this session. Upper body and arm care only.
Day B — Upper Body / Arm Care Priority (45–60 min)
Schedule: Thursday or Friday | After games or on off-days
DB bench, pull-ups, shoulder press, cable rows, rear delt work, rotational core — followed by the full 15–18 minute VeloRESET arm care protocol. Day B is the most important session of the week for pitchers and catchers. If you’re short on time, cut the accessory lifts. Never cut the arm care.
The Five In-Season Laws (Non-Negotiable)
Every high school baseball player following this program operates by five rules. Break any of them consistently and the program doesn’t work.
Why 75–82% 1RM Is the In-Season Maintenance Zone
The research on in-season strength maintenance is clear on one key point: you can reduce volume dramatically, but you cannot reduce intensity without losing the neural adaptations that drive power output.
Häkkinen et al. (1985) and subsequent research established that strength training adaptations are highly dependent on maintaining training intensity — defined as percentage of 1RM — even when volume is significantly reduced.2 Athletes who dropped both volume AND intensity during in-season periods lost significantly more strength than those who maintained intensity while reducing sets.
75–82% 1RM is the sweet spot for high school athletes in-season. It’s heavy enough to keep your nervous system adapted to the loads it trained with all off-season. It’s light enough to recover from in 24 hours before your next game. The formula: 3 sets of 6 on main lifts, same weights you were using at the end of Phase 1 of your off-season program.
The VeloRESET Arm Care Protocol In-Season
During the season, your throwing arm is under more cumulative stress than at any other point in the year. Practice throws, bullpen sessions, warm-up throws before games, the game itself — it all adds up across a 10–12 week season. The VeloRESET protocol takes 15–18 minutes and runs three phases every Day B session:
- Phase A: Tissue Preparation (5 min) — foam roll lats, posterior shoulder, and pec minor. The pec minor is chronically shortened in high school athletes from poor posture and heavy anterior loading. Address it before any strengthening work.
- Phase B: Rotator Cuff Strengthening (7 min) — band external rotation with a mandatory 3-second eccentric return, internal rotation, scaption (empty can), face pulls with external rotation squeeze. The 3-second eccentric on band ER is the single most important cue. Most athletes rush the return and lose 80% of the strengthening benefit.
- Phase C: Mobility and Flexibility (5 min) — sleeper stretch (posterior capsule), cross-body stretch, doorway pec stretch, wrist/forearm flush, shoulder CARs. The sleeper stretch targets glenohumeral internal rotation deficit (GIRD) — the posterior capsule tightness that Wilk et al. (2011) identified as a significant risk factor for shoulder injury in overhead athletes.3
Pitchers: after every start or high-pitch-count relief appearance, run the full protocol within 2 hours. Log your arm fatigue on a 1–10 scale. Three consecutive days at 7 or above is a signal to your coach that you need a modified week.
Free Printable
Both Workouts + Tournament Protocol in One PDF
Day A, Day B, the full VeloRESET protocol, the game-day morning activation, the post-start arm care routine, and the home mobility program — all in one printable program. Enter your email and it goes straight to your inbox.
How to Schedule Around Your Game Calendar
The exact days for Day A and Day B shift each week based on your schedule. The rules that never change: no heavy lower body 48 hours before pitching, no lifting on game days, tournament weeks = Day B only.
A standard two-game week (Tuesday and Friday games) looks like this:
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|
| Day A Full Body (60 min) |
Game | Home Mobility (20 min) |
Day B Upper/Arm Care |
Game | Game | Rest |
Three-game weeks: same structure, but check Law 1 for any pitching appearances and adjust Day A accordingly. Four-game or tournament weeks: Day B only.
Frequently Asked Questions
The key difference is that this program maintains intensity (75–82% 1RM) while reducing volume (3 sets instead of 4–5). Research consistently shows that strength adaptations are preserved by maintaining load even when frequency and sets are reduced. Athletes who drop both volume AND intensity — “just going light” — lose strength almost as fast as athletes who stop lifting entirely. The loads in this program feel manageable because the total work is less, not because the weight is lighter.
Yes, with the 48-hour rule strictly followed. No heavy lower body within 48 hours of a start or significant relief appearance. On weeks when you pitch, Day A becomes upper-body-only if your pitching day falls within the 48-hour window. Day B and the full VeloRESET protocol are non-negotiable for pitchers throughout the season — in fact, they’re more important for pitchers than any other position.
This program assumes you’re maintaining strength you already built — it’s not a beginner program designed to build a base from scratch mid-season. If you didn’t do an off-season program, start with lighter loads (RPE 6–7 on all exercises rather than the percentage prescriptions) and focus on learning the movement patterns correctly. You won’t see the same strength maintenance results because there’s less to maintain, but the arm care and recovery protocols will still be valuable throughout your season.
Yes — but at reduced volume. During the first round of playoffs (typically 1–2 games that week), run the program as normal. If you advance to multiple rounds in the same week, switch to Day B only — upper body and arm care, no lower body. The goal in playoff weeks is arm freshness and recovery, not strength maintenance. You’ve already built and maintained the strength all season. Trust it.
Most of the program requires standard high school weight room equipment: a squat rack, barbell, dumbbells, a cable machine, and resistance bands. The KB swing on Day A can be replaced with a trap bar jump shrug or a box jump if kettlebells aren’t available. The arm care protocol requires only resistance bands. If your school weight room is limited, the PDF includes substitutions for each piece of equipment.
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Get the High School Baseball In-Season Workout Program PDF
Both workouts, the tournament week protocol, the game-day activation routine, the home mobility program, and the full VeloRESET arm care protocol — printable, ready to take to the weight room.
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References
1. Rhea MR, et al. A meta-analysis to determine the dose response for strength development. Med Sci Sports Exerc. 2003;35(3):456–464. PubMed 12618576
2. Häkkinen K, et al. Changes in isometric force- and relaxation-time, electromyographic and muscle fibre characteristics of human skeletal muscle during strength training and detraining. Acta Physiol Scand. 1985;125(4):573–585. PubMed 4091001
3. Wilk KE, et al. Correlation of glenohumeral internal rotation deficit and total rotational motion to shoulder injuries in professional baseball pitchers. Am J Sports Med. 2011;39(2):329–335. PubMed 20884834
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