What to Drink the Night Before a Tennis Match (and What to Skip)
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It's the night before a big match. You've packed your bag, checked the forecast, and now you're wondering whether you should be chugging water, adding electrolytes, or just going to bed.
Here's the honest answer: there's no magic drink the night before a match. Hydration is built over several days, not in one evening. But what you drink, and what you skip, in the evening before still matters, mostly because of how it affects your sleep and how you feel when you wake up.
This guide covers what to drink the night before a tennis match, what to go easy on, and a simple routine from tonight to the first serve.
Quick tip: There's no magic drink the night before a match. Hydration is built over several days, not in one evening.
The Short Answer
- Drink water steadily through the day and evening. Don't wait until bedtime.
- Have fluids with your dinner, a meal you're used to.
- Consider electrolytes if tomorrow's match is long or hot, or if you sweat heavily. Not everyone needs them.
- Skip alcohol, and watch your caffeine cutoff.
- Don't force a huge amount of water right before bed.
- Plan your morning drinks, because the hydration that counts most happens in the hours before you play.
Why One Glass the Night Before Isn't Enough
USTA guidance on match preparation suggests starting to hydrate five or six days before competition, then drinking 12 to 16 ounces on waking on match day, and another 12 to 16 ounces of water, an electrolyte drink or juice about 60 to 90 minutes before play.
In other words, hydration the night before a match is one point on a longer timeline. If you've been drinking steadily all week, you're already ahead. If you haven't, one big glass at 9 p.m. won't catch you up.
A position paper from the Academy of Nutrition and Dietetics, the American College of Sports Medicine and Dietitians of Canada, as summarized in Today's Dietitian, suggests drinking about 5 to 10 mL per kilogram of body weight over the 2 to 4 hours before exercise. That's the match-day window, which is why the morning matters as much as tonight.
What to Drink the Night Before
Water, sipped steadily
Spread your fluids through the afternoon and evening, with meals and between them. Steady sipping is easier on your stomach and your sleep than gulping a lot at once.
A drink with your dinner
Drinking with your meal is an easy habit. In a small study of eight people rehydrating after exercise in the heat, those who drank water with a meal kept about half of it over the next three hours, and a salty drink with the same meal kept about 70%. It's one small study done after exercise, not the night before, so treat it as a reason to drink with your meal, not a rule.
Electrolytes before a tennis match, if they make sense
Electrolytes aren't needed every time. They may be worth considering if tomorrow's match will be long or hot, if you sweat heavily, or if you're playing more than once. The position paper above notes that athletes may add sodium to sports drinks or pre-exercise meals to help retain fluid, and that the amount depends on how much sodium you eat and how much you lose in sweat. A sports dietitian can help you work out whether you need to, and how much. Our guide to whether every tennis player needs an electrolyte drink can help you decide, and how to choose an electrolyte drink shows what to check on the label.
Caffeine-free evening drinks
If you want something warm or flavorful in the evening, a caffeine-free option such as herbal tea counts toward your fluids and won't interfere with sleep the way caffeine can.
What to Skip or Go Easy On
Alcohol before tennis match day
Alcohol is the one to be most careful with. Ireland's Health Service Executive (HSE) notes that alcohol is a diuretic, so it makes you urinate more, which can dehydrate you. It also reduces REM sleep, so you may wake up drowsy and low on energy. HSE advises avoiding alcohol for about 48 hours before sport, and if you do drink, keeping it to one or two drinks and drinking plenty of water. A good night's sleep is part of tennis match preparation the night before, and alcohol gets in the way of it.
Caffeine, late in the day
The Sleep Foundation notes that caffeine's half-life is about 2 to 12 hours, depending on the person, and recommends stopping at least eight hours before bedtime. For a 10 p.m. bedtime, that means no caffeine after 2 p.m. Even if you fall asleep easily, caffeine can make your sleep lighter. Coffee on match morning is a separate question. See the FAQ below.
A big gulp right before bed
Chugging a large amount of water just before sleep can mean getting up in the night, which costs you the sleep you're trying to protect. Finish most of your drinking earlier in the evening.
Carbonated and sugary drinks as your main fluid
USTA lists carbonated drinks, along with caffeine and alcohol, as less effective for rehydration. Water, or a drink you can comfortably sip, is a simpler base. USTA also notes that drinks above about 7% to 9% carbohydrate can slow how quickly fluid is absorbed.
Anything new
Don't try a new drink, supplement or food the night before a match. Test them in practice first, so you already know what to eat and drink before a tennis match and a stomach surprise doesn't happen mid-match.
How to Hydrate Before a Tennis Match: From Tonight to the First Serve
| When | What to do |
|---|---|
| During the days before | Drink steadily. USTA suggests starting five or six days out |
| Afternoon | Sip water regularly. If you drink caffeine, stop at least 8 hours before bed |
| Dinner | Eat a meal you're used to, with fluids. Consider electrolytes if tomorrow is long or hot |
| Evening | Sip, don't gulp. Skip alcohol. Set out your water bottle and bag |
| Bedtime | Finish most fluids earlier so you can sleep through the night |
| Match morning | 12 to 16 oz on waking (USTA) |
| 60 to 90 minutes before play | Another 12 to 16 oz of water, an electrolyte drink or juice (USTA) |
| At changeovers | 4 to 8 oz if you're a light to moderate sweater, 8 to 16 oz if you sweat heavily (USTA) |
For the full plan, read our guide to staying hydrated before, during and after a match, and what to drink after a tennis match for the recovery side.
If Your Match Is Early, Hot or Long
- Early match: you have less time to drink in the morning, so how to hydrate for an early tennis match comes down to steady fluids the day before and a sensible dinner.
- Hot forecast: you're likely to sweat more, so make sure your day-before hydration is on track and talk to a dietitian about electrolytes.
- More than one match tomorrow: plan your between-match drinks as well. A longer, sweatier day is when electrolytes matter most.
How Do You Know If You're Hydrated?
Pale urine is a common rough guide, but it isn't foolproof. The Today's Dietitian summary, quoting ACSM's fluid-replacement guidance, notes that urine color and volume are subjective and can be misleading, and urine can look pale while someone is still dehydrated during rehydration. If you often feel thirsty, dizzy, headachy or very tired, or your urine is consistently dark, talk to a healthcare professional rather than just drinking more. For what to watch for on court, see signs of dehydration while playing tennis.
Where AceFit Hydrate Fits
AceFit Hydrate is a dietary supplement electrolyte drink mix created for women in tennis. If you decide electrolytes make sense for you, check the Supplement Facts on the AceFit Hydrate page, and ask your doctor first if you have a health condition or take medication. Test it in practice before match day.
Related reading
The Bottom Line
There's no magic drink the night before a match. Hydrate steadily, eat a dinner you know, skip alcohol, watch your caffeine cutoff, and get a good night's sleep. Then drink on waking and again before you play.
Taking care of yourself is part of the game.
Frequently Asked Questions
What should I drink the night before a tennis match?
Water, sipped steadily through the afternoon and evening and with your dinner, is the foundation. Consider electrolytes if tomorrow's match is long or hot, or you sweat heavily. Skip alcohol and watch your caffeine cutoff.
Should I drink a lot of water the night before a tennis match?
Steady is better than a lot. USTA suggests hydrating over the five or six days before competition, so one big drink the night before won't catch you up, and gulping a lot before bed can disrupt your sleep.
Does drinking water the night before help?
It can help as part of steady hydration over several days. It isn't a substitute for the days before or for drinking on match morning.
Are electrolytes good the night before a tennis match?
They can make sense if tomorrow's match will be long or hot, or you're a heavy sweater, but not everyone needs them. A sports dietitian can help you decide whether to add sodium and how much.
Can I drink alcohol the night before a match?
It's best to skip it. HSE notes that alcohol is a diuretic and reduces REM sleep, and it advises avoiding alcohol for about 48 hours before sport. If you do drink, it suggests keeping it to one or two drinks with plenty of water.
How late can I have caffeine before a tennis match?
The Sleep Foundation recommends stopping caffeine at least eight hours before bedtime, because it can stay in your system for hours and make sleep lighter. On match morning, USTA notes that drinks with caffeine aren't as effective as sports drinks for rehydrating, so stick to what you're used to and drink water too.
How early should you start hydrating for a match?
USTA suggests starting five or six days before competition, drinking steadily and then 12 to 16 ounces on waking on match day.
Wondering what to drink the morning of a tennis match?
USTA suggests 12 to 16 ounces on waking, and another 12 to 16 ounces of water, an electrolyte drink or juice about 60 to 90 minutes before play.
Will drinking water at night make me wake up to use the bathroom?
It can if you drink a large amount close to bedtime. Spread your fluids earlier in the evening, and finish most of them a little before bed.
Should I try a new sports drink the night before a match?
No. Try new drinks, foods and supplements in practice so you know how your stomach handles them.
What if my match is early in the morning?
Hydrate steadily the day before, eat a familiar dinner, and set out your water bottle so your first drink is ready when you wake up.
How do I know if I'm hydrated enough?
Pale urine is a rough guide, but it isn't reliable on its own. If you're often thirsty, dizzy, or headachy, or your urine is regularly dark, talk to a healthcare professional.
This article is for general educational purposes only and isn't personal medical or nutrition advice. Talk to your doctor or a registered dietitian before adding any supplement, or if you have a health condition, take medication, or have been advised to limit fluids or sodium. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Sources
- USTA: Beat the Heat, Cooling and Hydration Tips for Tennis Players
- Today's Dietitian: Nutrition for Athletic Performance, a Focus on Hydration (summary of the Academy of Nutrition and Dietetics, ACSM and Dietitians of Canada position paper)
- HSE (Ireland): Alcohol and sports performance
- Sleep Foundation: Caffeine and Sleep
- Evans et al., 2017, International Journal of Sport Nutrition and Exercise Metabolism: rehydration study