Energy Chews for Hyrox: Fuelling Plan by Finish Time

Hyrox doesn't fit neatly into the fuelling advice written for marathons or sportives, and that's the problem most competitors run into. You're not moving at a steady aerobic pace for two hours — you're alternating 1km runs with eight brutal functional stations, so your body is lurching between steady-state running and short, glycolytic efforts like the 100m sandbag lunges and 100 wall balls. That mismatch is exactly why so many first-time Hyrox athletes hit a wall somewhere around station six, long before their cardiovascular fitness would predict it.

The right fuelling plan for Hyrox depends almost entirely on how long you're going to be out on the floor. An elite athlete finishing in 58 minutes has completely different needs to an Open-division competitor still working through station seven at the 90-minute mark. Below is a practical, finish-time-based fuelling plan built around what actually works mid-race, when your hands are cold from the sled and your grip is shot from farmers carries.

Why Hyrox Fuelling Isn't Like a 10k or a Sportive

Running nutrition assumes a fairly constant heart rate and steady glycogen drawdown. Hyrox breaks that assumption in two ways. First, the strength stations recruit fast-twitch fibres and burn through muscle glycogen faster than the running segments alone would suggest — the sled push and sled pull in particular are short but savage, and they leave you running the next kilometre on legs that already feel emptied. Second, grip and hand function degrade through the race. After farmers carries and sled pulls, fine motor control in your fingers drops noticeably, which matters more than people expect: fumbling to tear open a gel sachet with numb hands mid-race costs you time and rhythm that a pre-portioned energy chew simply doesn't.

There's also a gut-comfort issue. The intensity spikes during wall balls and burpee broad jumps push blood away from the digestive system, so anything you eat needs to sit well under load — not just in a lab test, but at 85% of your threshold heart rate with your stomach already unsettled from the row.

Sweat rate is the other variable people underestimate. Hyrox venues are typically warm, poorly ventilated indoor arenas packed with competitors and spectators, and the constant transitions between cardio and strength work push core temperature up quickly. Losing even 2% of your bodyweight in fluid can measurably slow you on the later stations, so your Hyrox fuelling plan needs to think about sodium and hydration alongside carbohydrate, not as an afterthought once the running is done.

Building Your Hyrox Fuelling Plan by Finish Time

Use your realistic finish time — not your target time — to decide how much carbohydrate you actually need. This is the single most useful adjustment most athletes can make to their Hyrox fuelling plan.

• Sub-65 minutes (elite and highly competitive): Your muscle glycogen stores comfortably cover this distance. A small caffeine hit (around 1–2mg per kg of bodyweight) 30–45 minutes before the start is more useful than mid-race carbohydrate. If you do fuel, one or two energy chews around station four is plenty — this is about maintaining sharpness for the final two stations, not replacing fuel you've burned.
• 65–90 minutes (strong age-group pace): Aim for 30–45g of carbohydrate across the race, taken as small amounts between stations three and six. This is the window where a lot of athletes fade on the last two roxzones without ever feeling like they've "bonked" — it just feels like heavy legs. A steady trickle of fast carbs prevents that.
• 90–110 minutes (typical first-timer or mixed-pace race): Target 45–60g of carbohydrate per hour of racing. Split this into small, frequent doses — two or three energy chews between each station rather than one large hit — so you're never asking your gut to process a big bolus while your heart rate is spiking on wall balls.
• Over 110 minutes (Open division, doubles, or a longer relay leg): Treat this like an endurance event and target 60–90g of carbohydrate per hour, using a mixed glucose-fructose source to keep absorption efficient without overloading a single sugar pathway. At this duration, dehydration and sodium losses start to matter as much as carbohydrate, so pair your fuelling with regular sips of fluid at the roxzone water points.

What and When to Fuel During the Race

Timing matters more than most competitors realise. The best windows to eat are in the 10–15 seconds walking into a station and the first few strides out of it — not mid-station, when your hands are occupied and your breathing is ragged. Keep your chews in a running belt or a zipped pocket you can reach without breaking stride, rather than relying on aid stations, because most Hyrox venues only provide water on the run segments and nothing at the stations themselves.

Avoid introducing anything new on race day. Practise your Hyrox fuelling plan in at least two or three training sessions that combine running with strength stations, so you know exactly how your gut responds to eating between a sled push and an 800m run at pace. What works fine in a Sunday long run can sit very differently when your heart rate has just spiked to 90% of max on the wall balls.

Race Morning and Pre-Race Fuelling for Hyrox

Because most Hyrox races finish in under two hours, you don't need the full three-day carbohydrate load that marathon runners use. A normal, carbohydrate-forward dinner the night before and a familiar breakfast 2–3 hours out — something like porridge with banana, or toast and jam — is enough to top up liver glycogen without leaving you heavy on the floor. If your heat is later in the day, a small top-up snack (a banana or a couple of energy chews) 30–45 minutes beforehand keeps blood glucose steady without sitting in your stomach through the first three stations.

Doubles and relay competitors have an easier job here, since the resting partner gets a genuine recovery window between legs. Use that time to sip fluids and take on a small amount of carbohydrate even if you don't feel like eating — appetite tends to drop under this kind of intensity, and waiting until you feel hungry usually means you've already fallen behind on fuel.

What We Use at FTP Endurance Fuel

We built our energy chews with exactly this kind of race in mind — something you can eat one-handed with cold, sled-fatigued fingers, that doesn't ask much of your gut when your heart rate is already elevated. Our Mixed Fruit Energy Pastilles use a glucose-fructose blend for quick, steady absorption, and each pastille is easy to grab and chew between stations rather than fumbling with a sachet. If you're training your gut ahead of race day and want to test a few flavours before committing to a bulk pack, the Taster Pack is a low-risk way to find what sits best with you under load.

Your Hyrox fuelling plan should match the race you're actually going to have, not the one you're hoping for. Be honest about your finish time bracket, rehearse your fuelling in training sessions that mix running and stations, and keep your carbohydrate source simple and easy to eat with tired hands. Ready to test your race-day fuelling? Explore our full range of bundles and find the pack that fits your training block.