Change less than you think. Keep protein and total food roughly where they have been, keep carbohydrate adequate as training volume drops, rehearse your race-morning meal at least once, and do not introduce new foods, new supplements or a sudden deficit in the final seven days. Race week is for removing variables, not adding them.
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How should I eat during HYROX race week? Change less than you think. Keep protein and total food roughly where they have been, keep carbohydrate adequate as training volume drops, rehearse your race-morning meal at least once, and do not introduce new foods, new supplements or a sudden deficit in the final seven days. Race week is for removing variables, not adding them.
Lock in race-week meals at order.smashmeals.com
HYROX publishes one fixed format: eight 1 km runs alternating with eight workout stations, so every athlete covers 8 km of running plus 8 stations. Because the format is fixed and public, athletes can rehearse it precisely — and race week is when that rehearsal should already be finished, not started. The most common self-inflicted problems in the final week are a sudden attempt to lean out, a new supplement someone recommended at the gym, and a race-morning meal eaten for the first time on race morning.
Taper adds a second trap. Training volume drops, appetite often does not drop with it, and some athletes respond by cutting food sharply just as they want carbohydrate availability to be good. Others assume taper means a week of eating whatever they like. Neither extreme helps.
Carbohydrate remains the lever with real support. The 2026 consensus discussion on carbohydrate availability treats adequate availability as the mainstream position for endurance and high-intensity performance, and the contemporary review stresses that the amount should scale to the event rather than being copied from marathon protocols.
Protein intake is a daily habit rather than a race-week intervention: the ISSN position stand puts roughly 1.4–2.0 g/kg/day as sufficient for most exercising people, and there is no evidence that spiking it in the final week does anything useful.
How strong is this evidence? No study has tested race-week protocols specifically in HYROX athletes. The strongest claim available is a negative one: there is no good evidence that dramatic last-week dietary changes improve performance, and plenty of practical experience that they cause gut problems.
Race week is easier when the week's food is already decided and labelled. at order.smashmeals.com
Familiar, labelled items make race week simpler, because you can repeat exactly what you rehearsed. Macros come from the menu data.
Examples from the SmashMeals menu and archive. The menu rotates weekly — check this week's menu.
One example shape. Your own week depends on heat time, travel and what your gut tolerates.
Our kitchen is 100% dedicated gluten-free because some people need it to be — coeliac disease, diagnosed gluten sensitivity, or a household that simply eats gluten-free. Removing gluten is not a performance strategy in itself, and there is no good evidence it improves output, recovery or inflammation in athletes without a medical reason. Race week is where a dedicated gluten-free kitchen earns its keep for coeliac athletes: travelling to an unfamiliar city with unfamiliar restaurants is the highest-risk week of the year for accidental exposure.
Take the guesswork out of race week at order.smashmeals.com
Nutrition needs vary with body size, training volume, goals, health conditions and competition demands. For individualised performance or medical nutrition, work with a qualified sports dietitian or clinician.
Editorially reviewed by SmashMeals for source accuracy in September 2026. Written from published research and each organisation's own current format documentation. It is not medical or individualised sports-nutrition advice, and no clinician reviewed it.
SmashMeals is not affiliated with, endorsed by, or sponsored by HYROX or its organisers. Race-format details are summarised from HYROX's own published rules; always check the current official rulebook for your event.
Last reviewed .