l am playing tennis for 5 hours tomorrow, the longest l have ever played for in a row (l am a junior :)) and wondered if anyone had any tips on how to keep on top of my game throughout the event? What to eat to stop getting tired, how to remain focused, that kind of thing. Thanks so much everyone - you rock.

:D
Roxie - fab answer. Thank you so much - expect to be best answer if not much else turns up in the next few hours or something.

:)
Aaah! So many great- l might have to leave it up to the voters. l will think of you all when l am playing :D
wow. did tennis and it was amazing. thanks everyone!!!

I've played for 5 hours before. its around the 4 hour mark you really start feeling it.
l suggest:
- Bananas; good energy supply
- Gatorade; hydration
- iPod (in breaks); helps me to calm down
- Towel - sweat!!

Good Luck!!

Basically everything Roxi said..
1) eat Bananas
2) Towel off
3) bring extra shirts & socks
because wet socks cause blisters & after a while a wet shirt is more of a distraction then anything
4) Ipod l guess
5) Water/Gatorade that is ROOM TEMPERATURE!!! u can poor cold water on ur face but dont drink anything cold because it could lead to an upset stomach

6) If u need a sudden burst of energy eat a candy bar, u body will be able to use the calories immediately. Make sure u dont eat too much though, u could get diarrhea

7) If u start to lose focus, watch the ball coming at u & try to read the label (always helps me)

There have been moments, times, where l have been on court for 6, 7 hours & yearning for more lol. l so love playing the game & only wish l could play every day for that long, but only because of something called WORK, that l cant lol.
People often ask how l last on a court, & basically, l have always been in good shape, but l breathe relaxed during points, even when Im usually on the run, & breathe slowly. All the while my bottles of gatorade assist in energy as well as granola bars, sometimes a banana, or even something sweet like a Hostess Cupcake. Its real important to breathe slowly & not allow yourself to give in to the ''exhaustion'' of running down shots & such, but instead stay mentally strong, & keep ur feet moving, & dont allow stiffness, cramps. We tend to not take those little steps as the match goes on, & sometimes thats what can hurt us. Good Luck to you!

You're a junior? That is really cool. l would say get as much sleep as you can and hydrate the evening before.Good luck!

Basically what everyone said. I'd probably bring a bucket of ice with me to cool down the muscle spasm if you have any. 5 hours is going to be tough on both the body and mind. Prepare mentally and physically. Eat and sleep well. But most importantly, enjoy the game.