Cramping in Long Matches
Also known as: cramping in tennis, cramps during a tennis match, cramping late in matches, leg cramps tennis, muscle cramps tennis, cramp prevention tennis, cramping medical timeout
Cramps are more likely late in long, hot matches, when your muscles are tired and you have lost fluid and salt through sweat. To prevent them, start well hydrated, drink water or a sports drink at every changeover, and add salt if you are a heavy sweater. Build fitness for long matches. If a cramp hits, gently stretch and massage the muscle.
The exact cause of muscle cramps is not fully known. Orthopaedic guidance links them to muscle fatigue and to exercise in heat. Sweat drains fluid, salt and minerals from your body. Cramps often come near the end of long, intense exercise.
Prevention starts before the match. USTA sport science advice is to start hydrating days ahead and to drink before you go on court. During play, drink water or a sports drink at every changeover rather than waiting for thirst. Heavy sweaters may need extra salt in food or drinks.
Fitness matters as much as fluids. Tired, poorly conditioned muscles cramp more easily. Train for the length of match you play, and warm up before you stretch.
The rules allow limited help. In USTA play, a player may take one medical timeout for cramping in the warm-up and one in the match. After that, delay caused by cramping can bring a code violation. Cramps can also be a sign of heat illness. If you feel dizzy, sick, confused or unusually tired, leave the court and get help.
Tips by skill level
Bring two bottles to hot matches and take a few sips at every changeover, even if you don't feel thirsty.
Weigh yourself before and after a hot practice. The loss tells you how much you sweat and how much to drink next time.
Example
In a third set on a hot day, Luis feels his calf twitch. He drinks a sports drink at the changeover, stretches the calf, and next time adds salt and drinks steadily from the first game.
Why it matters
Cramps can end a match you were winning. A plan for fluids, salt and fitness keeps you strong late in long sets.
Common mistakes
- Drinking only when thirsty in a hot match
- Drinking plain water all day as a heavy sweater and ignoring salt
- Expecting fluids alone to fix poor match fitness
Frequently asked questions
How do I stop cramping in tennis matches?
Start well hydrated, drink at every changeover, add salt if you sweat heavily and build fitness for long matches. If a cramp starts, stretch and gently massage the muscle.
Can you take a medical timeout for cramps in tennis?
In USTA play, yes: one in the warm-up and one in the match. Further delay from cramping can bring a code violation.
Sources
- American Academy of Orthopaedic Surgeons (OrthoInfo) — Muscle Cramps: Cause, Treatment and Prevention
- USTA Sport Science Committee — Beat the heat: cooling and hydration tips for tennis players (hydrate in advance; drink at every changeover; added salt)
- USTA Friend at Court 2026 — Table 13 C (cramping limit, printed p. 101), Table 14 delay from obvious cramping (printed p. 111) and USTA Emergency Care Guidelines: Heat Illness (printed p. 157)
Related terms
- Playing in Sun and HeatWhen serving into the sun, shift a little along the baseline or change your stance so the toss is out of the glare, and wear a cap or visor. If the sun catches your toss, catch the ball and toss again; that is not a fault. In the heat, drink at every changeover rather than waiting for thirst, cool down with shade and ice towels, and stop if you feel dizzy, sick or unusually tired.
- Tennis Fitness and ConditioningTennis fitness is about repeated short sprints with quick recovery, not long steady runs. Train with intervals that mimic points, agility and footwork drills, leg and core strength, and an aerobic base for long matches. Build it up gradually alongside your tennis, and keep at least one easy day between hard sessions.
- Tennis Warm-UpA good tennis warm-up raises your heart rate, moves your joints through the ranges you use on court, and rehearses tennis movement. Start with light jogging or skipping, then dynamic moves such as leg swings, lunges, arm circles and trunk turns. Finish with side shuffles, short sprints and shadow swings, then start hitting with mini tennis.
- Walkover, Retirement and DefaultA walkover means a player never starts the match, usually because of injury, illness or a personal reason, so the opponent goes through without playing. A retirement means the match started but a player could not finish it. A default is different: an official removes the player, for example for not showing up or under the point penalty system.
- Changeovers and Changing EndsYou switch sides after the first game of each set and then after every odd game: the third, fifth, seventh and so on. Each changeover allows up to 90 seconds of rest, except after the first game of a set, when you swap ends without sitting. The break at the end of a set lasts up to 120 seconds.
Related guides & benchmarks
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