Players work hard through December and January, arrive at February in the best shape of their lives, and then do nothing physical for four months except play games.
By May they are weaker, less mobile and more fragile than they were at the start — which is precisely when the season matters most.
What a Season Takes Away
| Quality | What happens without maintenance |
|---|---|
| Strength | Declines steadily across a long season |
| Mobility | Often lost faster than strength |
| Body weight | Frequently drops with heat, travel and irregular eating |
| Power output | Follows strength down |
| Tissue resilience | Repetitive one-sided load with no counterbalance |
The mobility row surprises people. Players get hurt in-season not only because they lose strength but because they lose range of motion — a lot of standing, a lot of one-sided rotation, and very little that moves them in the opposite direction.
You do not need to keep training hard. You need to keep training. Those are very different amounts of work.
WAR Baseball coaching staff
How Little It Takes
This is the encouraging part: maintaining strength requires dramatically less volume than building it.
| Element | In-season dose |
|---|---|
| Frequency | 2-3 short sessions per week |
| Volume | A couple of sets per movement |
| Movements | One bilateral, one single-leg, one pull, core |
| Intensity | Moderate to heavy, low reps — not to failure |
| Duration | 20-30 minutes is sufficient |
| Mobility | Daily, briefly — hips and thoracic spine |
Twenty minutes twice a week preserves most of what an eight-week winter block produced. That is the entire argument — our off-season training guide covers building it; this is about not losing it.
When to Train
| Day | Approach |
|---|---|
| Day after a game | Best window for a strength session |
| Two days before a pitcher’s start | Light only |
| Day before a start | Nothing significant |
| Tournament weekend | Mobility and movement only |
| Monday after a heavy weekend | Recovery first, then light work |
The governing principle is that training must not compromise the next performance. In-season work is subordinate to competition, which is exactly why the volume can be so low.
Guidance from the American College of Sports Medicine on training through a competitive season is worth reading for anyone programming this for a young athlete.
What to Actually Do
A short in-season session does not need to be complicated. Four movements cover most of it.
| Movement | Example | Why |
|---|---|---|
| Squat or lunge pattern | Goblet squat, split squat | Maintains lower-body strength |
| Hinge pattern | Romanian deadlift, hip thrust | Posterior chain; protects the back |
| Pull | Row variation | Balances all the pushing and throwing |
| Anti-rotation core | Pallof press, carries | Counteracts one-sided rotation |
| Optional | Med ball throws | Maintains power output |
Two sets of each, moderate load, never to failure. That is twenty minutes and it preserves most of a winter’s work.
Mobility Is the Priority
If a player will only do one thing in-season, this is arguably it.
- Hips — flexors and rotators, daily, briefly.
- Thoracic spine — rotation is what hitting and throwing depend on.
- Posterior shoulder — particularly for pitchers and catchers.
- Ankles — affects everything from fielding to sprinting.
- Counter-rotation work — baseball only rotates one way.
Five minutes after every game does more than a long session once a month. It also pairs with the cool-down our warm-up guide recommends and nobody does.
Why Players Skip It
| Reason given | Reality |
|---|---|
| “No time during the season” | Twenty minutes, twice a week |
| “It’ll make me sore for games” | Only if the volume is wrong |
| “I’m playing, that’s enough” | Games are not training; they are output |
| “I’ll rebuild it in the off-season” | Rebuilding costs months you already paid for |
| “My coach doesn’t program it” | Most youth coaches do not — that is why players lose it |
The third row is the important one. Playing games is a demand on the body, not a stimulus that maintains strength — which is why players who only play get progressively weaker across a season.
Eating Through a Season
Body weight loss across a season is common and costs performance directly.
| Cause | Fix |
|---|---|
| Long tournament days | Pack real food — see our fuelling guide |
| Heat suppressing appetite | Eat on a schedule rather than by hunger |
| Travel and irregular meals | Plan the cooler; do not rely on concessions |
| Growing while competing | Increase intake deliberately |
| Late finishes | Eat within an hour regardless of the time |
Our tournament nutrition guide covers game-day fuelling and our everyday nutrition guide covers the eating that maintains weight across months.
Recovery Counts as Training
In-season, the limiting factor is rarely effort. It is recovery, and sleep is the largest component of it by a considerable margin.
An under-slept player loses strength faster, gets injured more, and performs worse — our sleep and recovery guide covers the size of that effect, including the finding that athletes sleeping under eight hours carry markedly higher injury risk.
Rest days are the other half. A player with school, practice, weekend tournaments and lessons has no genuine off day, and that is a programming failure rather than dedication.
A Workable Week
| Day | Activity |
|---|---|
| Monday | Recovery: mobility, light movement |
| Tuesday | Practice + short strength session |
| Wednesday | Practice; mobility only |
| Thursday | Short strength session |
| Friday | Light; travel |
| Saturday / Sunday | Games |
| Any day | Five minutes of mobility |
Two twenty-minute sessions. That is the whole programme, and it is the difference between arriving at the end of a season stronger than you started or noticeably weaker.
Speed and agility work is built into team membership for our players at Powermill, which covers much of this — our FAQ sets out the weekly structure.
Frequently Asked Questions
Should baseball players lift weights during the season?
Yes. Strength built in the off-season fades without maintenance, and in-season training also protects against the overuse injuries a long season produces. Two short sessions a week is usually enough.
How much training is needed to maintain strength?
Far less than to build it. A couple of sets of a few key movements, two or three times a week, maintains most off-season gains without interfering with recovery.
Why do players lose mobility during a season?
Repetitive one-sided movement, long periods standing, and travel. Loss of mobility — particularly in hips and thoracic spine — is as common as loss of strength and contributes directly to injury.
When should in-season lifting happen?
Usually the day after a game or on a light day, never the day before a start for a pitcher. The principle is that training should not compromise the next competitive performance.
Do players lose weight during a season?
Frequently, and it costs performance. Long days, heat and travel make eating inconsistent, and maintaining body weight through the season is one of the more overlooked priorities.
Train Through the Season
WAR Baseball builds conditioning into team membership year-round. See upcoming tryouts for 13U through 17U in Tallahassee.