Where it stops.
Before any plan exists, CourtFit asks for a pain score from zero to ten and for red flags. A score of 5 or higher, or any red flag — swelling, numbness or tingling, night pain, recent surgery, or a doctor advising against training — blocks plan generation completely. There is no lighter version and no way past it; the only route on is back to the safety check.
Mid-session the same question splits in two. Pain of 5 to 7 with no red flags offers a mobility detour and keeps your streak. Pain of 8 or above, or any red flag, closes the workout.
What flagging it changes.
Below the blocking threshold, declaring the shoulder as a pain area removes the 10 exercises that load it provocatively — the pressing, carrying and rotational work that puts the joint under heavy or explosive demand. What stays is the opposite kind of movement: the 18 light exercises that train shoulder stability and scapular control. Those are kept on purpose and moved to the front of the session, where they actually get done rather than being dropped when time runs short.
Reporting any pain above zero, in any area, is a separate rule: it removes plyometrics from the week and takes a set off the main work. Those two mechanisms are independent, and a plan can be shaped by one without the other.
What leaves the week.
These are the 10 exercises the app drops while shoulder is flagged. They are not dangerous movements — they are the ones that load this joint in the way the screen is trying to spare.
Side plank
Strong obliques stabilize the trunk through the sideways forces of groundstrokes.
Cable lift
Trains the upward rotational drive that takes your racket up and through the serve.
Med ball slam
Trains the overhead-to-down power sequence that resembles snapping into a serve.
Single-arm dumbbell row
Back strength balances all the front-side serving load and powers a strong two-handed backhand pull.
Half-kneeling landmine press
Builds overhead pressing power in a joint-friendly angle that carries over to the serve.
Bottom-up kettlebell carry
Forces the shoulder stabilizers and grip to work together, exactly what a stable serving arm needs.
Thoracic open book
Frees up the upper-back rotation that lets you turn fully into your strokes and serve.
Quadruped thoracic rotation
Improves the upper-back mobility needed for a full shoulder turn on groundstrokes.
Lat stretch
Loosens the lats so your arm can reach fully overhead for the serve and smash.
Medicine ball serve rhythm drill
Grooves the leg-trunk-arm chain of the serve while building repeatable power under light fatigue.
The 18 the library holds.
These are the exercises tagged for shoulder stability and scapular control. It is a wider net than the library's upper body and shoulder category, which holds 18 exercises: an exercise filed under core or legs can still train the same stability and control qualities, and the app selects on the quality, not the category. Each line is the app's own sentence about what it does for a tennis player — not a claim about your shoulder.
Band external rotation
Builds rotator-cuff control for the repeated rotation of serving.
Band internal rotation
Balances the inner rotators that decelerate the serving arm after ball contact.
Band pull-apart
Sets and stabilizes the shoulder blades, which supports both the backhand pull and serving posture.
Dumbbell floor press
Builds firm pressing strength for volleys while keeping the shoulder in a safe, supported range.
Face pull
Strengthens the back of the shoulder to balance repeated serving and overhead work.
Incline push-up
An entry point to pressing strength that supports volley control and shoulder health.
Prone trap raise
Strengthens the lower traps that stabilize the shoulder blade through the overhead serve motion.
Push-up
Builds the pressing strength and shoulder stability behind firm volleys and a sturdy serve arm.
Reverse fly
Strengthens the back of the shoulder for repeated serving and overhead work.
Scapular push-up
Trains the shoulder blade to glide and anchor properly, a foundation for a healthy serving shoulder.
Scapular wall slide
Grooves the overhead shoulder mechanics that keep your serve smooth and pain-free.
Serratus wall slide
Activates the muscle that keeps the shoulder blade anchored when you reach overhead to serve.
Y-T-W raise
Strengthens the small muscles that control the shoulder blade, key to a healthy serving shoulder.
Band row
A portable way to build the back strength that keeps your shoulders balanced and your backhand solid.
Bear crawl
Builds the coordinated, twist-resisting core that keeps you stable while moving in every direction.
Cable row
Builds the pulling strength and posture that support backhand drives and a balanced shoulder.
Pec doorway stretch
Opening a tight chest restores the shoulder position needed for a full, healthy serve.
Shoulder CARs
Builds controlled, usable shoulder range that supports a smooth, durable serve.
See the whole library — all 84 exercises, grouped by what they train.
The other four the screen covers.
CourtFit's pain screen asks about five areas, and each one changes the week differently. These are the other four.
Read next
Straight answers.
Can I train with shoulder pain from tennis?
CourtFit cannot answer that for you — it cannot examine a shoulder and does not try to. What it does is refuse to build a plan when you report pain of 5 or higher out of ten, or any of its red flags: swelling, numbness or tingling, night pain, recent surgery, or a doctor telling you not to train. In those cases it shows a referral message instead of a lighter week.
What changes in the plan when I flag my shoulder?
The 10 exercises that load the shoulder provocatively come out of the week, and the 18 light stability and scapular-control exercises are kept and moved to the front of the session. Separately, reporting any pain above zero removes plyometrics from the week and takes a set off the main work. Those are two different rules and a plan can be shaped by one without the other.
Does CourtFit replace a clinician for shoulder pain?
No. It is a training companion, not medical care, and it does not diagnose, treat or prevent any condition. If pain increases, stop and consult a qualified healthcare professional.
What if the pain starts mid-session?
The workout screen asks. Pain of 5 to 7 with no red flags offers a mobility detour instead of the loaded session. Pain of 8 or above, or any red flag, ends the session with a referral and no option to continue.