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Competing while fasting: the day itself
Every piece of fight-day advice ever written rests on one assumption: that you can eat and drink on the day. Remove it and the whole structure has to be rebuilt around a meal taken before first light, hours before anybody else in the venue has woken up.
If the bout falls after sunset, the day is close to normal. Iftar becomes the pre-competition meal, and the only real problem is that it lands closer to the start than a meal usually would.
If the bout falls in daylight, suhoor is the last thing that enters your body before you compete. It has to do the work of a whole day.
A multi-bout tournament in daylight is the hardest case in this sport, because nothing can go in between matches.
None of it is improvised on the day. The running order is known in advance, and that is when the plan is built.
Whether to fast on a competition day, and whether an exemption applies to a travelling athlete, is a question for the athlete and for whoever advises him on his faith.
It is not mine to answer, and everything here is written for those who are fasting.
Find out when you compete, then plan backwards
| When the bout falls | What that means |
|---|---|
| After sunset | Iftar is the pre-competition meal. Nearly normal |
| Late afternoon | Long fasted stretch, but recovery starts soon after |
| Morning or midday | Suhoor is the last intake. Recovery waits until sunset |
| Several bouts across the day | Nothing available between them at all |
The first job on a fight week is to establish which row you are in, and it is often knowable weeks ahead. Cards publish running orders. Tournament brackets are drawn the day before. A coach who says he will find out on the morning has made the decision for you, and made it badly.
When suhoor has to carry the whole day
In an ordinary competition the anchor meal sits 3 to 4 hours before the earliest plausible start, and the structure is in fight day timing.
Fasting moves that anchor to whenever first light is, which may be 8 or 10 hours before you compete.
What that meal has to do changes accordingly. Slower carbohydrate rather than fast, because it has to release across the morning. Protein and some fat to slow the whole thing further. Fluid taken steadily in the period before, not poured in at the last minute, since most of what arrives in a rush leaves again.
Salt matters more than people expect here, because sodium helps you hold what you drank. That is the same mechanism described in rehydration after the weigh-in, applied at the other end of the day.
You will be competing in a lower fuel and fluid state than an opponent who ate breakfast. That is not defeatism, it is the planning assumption. Which means the plan is to arrive with as much in reserve as possible and to avoid anything that spends it early: long warm-ups, sitting in heat, extra sweating for the sake of a number.
The tournament case
Judo, wrestling and amateur boxing run brackets across a day, and this is where the problem is at its worst. In an ordinary tournament the answer is small repeated top-ups between matches, and that structure is in what to eat between matches at a tournament.
Fasting removes the top-ups entirely. Four or five contests, several hours, nothing in between.
Which shifts everything to two places. Suhoor has to be larger and slower than it would otherwise be. And the warm-up has to be shorter and cooler than usual, because a long one costs fluid you have no way of replacing.
Coaches often resist that. Have the argument.
When the bout is after sunset
This is the easy case and it still has one trap in it.
Iftar arrives at a fixed time set by sunset, not by the running order, and it may land 90 minutes before you walk out. That is closer than anybody would plan a pre-competition meal. So break the fast small: fluid, dates or something similar, a modest amount of carbohydrate.
Eat properly afterwards, not before.
The instinct after a full day of fasting is to eat a real meal because it is finally allowed. On a competition night that is the wrong instinct, and it is the one thing on this page I would put on the wall.
Testing does not stop for the month
One practical point that catches teams out. If you are in a testing pool, a doping control officer can arrive on any day of this month, and providing a urine sample requires fluid you may not be able to take until sunset.
The result is a long wait under observation. Several national anti-doping organisations publish guidance on exactly this: officers are trained to expect the delay, to wait, and where possible to remain until sunset so the athlete can break the fast before providing the sample.
No athlete is asked to break a fast in order to be tested.
What is not flexible is cooperation. Waiting under observation while unable to produce a sample is not a violation. Refusing or leaving is, and the fast is not a defence.
What the process involves is in called for a test.
After the last match
Recovery starts at sunset regardless of when you finished, and if you competed at midday that gap is part of the day rather than an oversight.
When it opens, run it properly: fluid with sodium first and in small repeated volumes, carbohydrate next, protein once things have settled. If you compete again tomorrow, that evening is not a celebration, it is the preparation, and the full order is in after the fight.
Not every fast removes the option of eating on the day. Where the restriction is on what rather than when, the competition day looks nothing like this one: fasting and combat sport.
Two complete sample documents are free to read before you buy anything.
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Oleksandr Foka is a sports nutritionist with over a decade in professional sport. He wrestled freestyle from the age of 4 until he was 22, competing as a medallist and champion at Ukrainian and international level, and has worked with amateur boxers since 2017, including champions and medallists at world championships. He has worked in world title camps in boxing with Oleksandr Usyk, Oleksandr Gvozdyk, Denys Berinchyk, Vladyslav Sirenko, Murodjon Ahmadaliev, Israil Madrimov, Sergiy Bogachuk, Sabirzhan Akkalykov and Abylaikhan Zhussupov, and with the Kazakhstan national boxing team and with Kazakhstan judo athletes, and currently works on the WTA tour.
Oleksandr Foka — sports nutritionist. Questions: fokaoleksandr@gmail.com
Educational content, not medical treatment. For adults 18+. Nothing on this page is religious guidance: whether to fast, and whether an exemption applies, is a matter for the athlete and their own religious authority. Competing in a dehydrated state carries real risk. Speak to a physician.