HYROX, Fuelled/Part 3

Race-Day
Fuel

HYROX is too short for marathon-style fuelling and too long to leave to a pre-workout. The best plan is simple: start fed, carry only what helps, drink with purpose, and test everything before race day.

01 - The 60-110 minute problem

You are topping up, not eating a full meal on course.

A typical HYROX race sits somewhere between a hard run and a strength-endurance test. The runs keep pulling on steady energy; the sled, lunges, burpees, and wall balls add hard spikes. You need enough carbohydrate to stay sharp, but not so much that your stomach becomes the problem.

Think of race fuel as a small top-up. The real job is to arrive fed, avoid a late-race dip, and keep fluids from becoming a guess.

02 - Build the plan

Build a plan from your expected finish time.

Use your real target finish time, not your dream time. Treat the result as a starting point, then test it during hard sessions before Delhi or Mumbai.

Your race

min
kg
ml/hr
Carb target
45 g/hr
Based on a 100 min race. Test this in hard training before you use it on race day.
Pre-race meal120-160 g carb
During2 gels
Pack3 gels
Fluid500-750 ml
What to do with this

Keep sodium with your fluid. Drink to stay steady, not to force the bottle down.

Night before

Eat a normal carb-rich dinner. Keep it familiar. Do not test a new gel, drink, or tablet.

Breakfast, 2-3 hours out

Eat 120-160 g carbs from foods you know sit well.

T-60 to T-90

If you do not know your sweat rate, use a normal electrolyte drink. Check your sweat rate after your next hard session.

T-30

Take a small carb top-up only if you have used it in training. Use caffeine only if it is already normal for you.

During

Aim for about 45 g carbs per hour. Use about 2 gels. Pack 3 if gels are your only carb source. Carry 500-750 ml with electrolytes.

After

Weigh in before and after a hard session. Use that to set your refill number.

Gels

C30 Energy Gel89/100 CleanLabel° read

30 g carbohydrate, 2:1, 200 mg sodium; isotonic (no water needed)

PF 30 Gel86/100 CleanLabel° read

30 g carbohydrate, 2:1 malto:fructose; carb stated on front

Gel 10084/100 CleanLabel° read

25 g carbohydrate, ~100 kcal; hydrogel; 6 ingredients; no colours/flavours/preservatives

Electrolytes

Reload (Lime Lemon)82/100 CleanLabel° read

5 electrolytes per tab: Na 180, K 77, Cl, Mg 20, Ca + Vit C/B12; 2:1 carb; low sugar; hypotonic

Reload Zero (Ice Current)78/100 CleanLabel° read

Zero-sugar electrolyte effervescent

Electrolyte Salt Caps76/100 CleanLabel° read

Electrolyte salt capsules; 100 caps; 132 g pack

Magnesium

Magnimax75/100 CleanLabel° read

Triple magnesium (bisglycinate, citrate, aspartate) + L-glycine, L-theanine, zinc; 6-in-1; stick packs

Chelated Magnesium Glycinate75/100 CleanLabel° read

~340 mg elemental magnesium from ~2040 mg glycinate per 2-tab serving; chelated

Race-day rules

Nothing new on race day. Do not drink just to match sweat loss. Too much water can be dangerous. These are estimates for healthy adults. If you have a medical condition or a past heat issue, work with a sports doctor or dietitian.

03 - Before the gun

The most important fuel is before the start.

For most athletes, a useful pre-race meal is about 1.5-2 g carbohydrate per kilogram of bodyweight, eaten early enough that it is not sitting heavily in the stomach. For an 80 kg athlete, that is roughly 120-160 g carbohydrate. Think familiar breakfast foods, low drama, and no new high-fibre experiment.

The night before should be familiar in the best way: enough carbs, normal salt, normal protein, and a meal you already know. Race week is not the time to learn that a new gel, magnesium tablet, or pre-workout does not agree with you.

04 - During the race

Use gels only when the race is long enough to need them.

HYROX carb bands by finish time
Finish timeCarb targetPractical read
Under 60 min0 g/hrStart fed. You probably do not need mid-race fuel.
60-90 minAbout 30 g/hrOne gel or a small carb drink can be enough.
90-110 minAbout 45 g/hrOften two gels in practice; pack a third only if needed.
110+ minAbout 60 g/hrPractice the timing and make sure your stomach agrees.
Gels and race carbs
ProductCleanLabel° readWhy it is herePrice snapshot
C30 Energy Gel
NEVERSECOND
Shop / source
89/100 CleanLabel° read30 g carbohydrate, 2:1, 200 mg sodium; isotonic (no water needed)INR 3500
PF 30 Gel
Precision Fuel & Hydration
86/100 CleanLabel° read30 g carbohydrate, 2:1 malto:fructose; carb stated on frontINR 997
Gel 100
Maurten
84/100 CleanLabel° read25 g carbohydrate, ~100 kcal; hydrogel; 6 ingredients; no colours/flavours/preservativesINR 313
Gel 100
Unived
Shop / source
78/100 CleanLabel° read25-26 g carbohydrate, ~100-110 kcal; beta-alanine + Sustamine; water-based; vegan; WADA-freeINR 585
PRO x HYROX The Energy Gel (Guava)
Myprotein
Shop / source
74/100 CleanLabel° read30 g carbs with electrolytes and B vitamins; Guava flavour; endurance energy for high-intensity trainingINR 7781
Energy Gel (Chocolate Bourbon Caffeinated)
Fast&Up
Shop / source
71/100 CleanLabel° readCaffeinated Chocolate Bourbon energy gel; instant energy boost; endurance and performance positioningINR 600
Energy Gel (Mixed Fruit)
GU Energy
Shop / source
68/100 CleanLabel° read~22 g carbohydrate, 2:1 malto:fructose; caffeinated options; mixed packINR 8900

05 - Fluids and sodium

Replace enough fluid. Do not chase every drop.

Delhi in July and Mumbai in September are indoor events, but warm-up areas, humidity, nerves, and repeated high-output stations still produce real sweat loss. The useful target is not to drink back every drop. It is to avoid a big fluid gap while staying comfortable and keeping sodium in the plan.

Electrolyte options
ProductCleanLabel° readWhy it is herePrice snapshot
Reload (Lime Lemon)
Fast&Up
82/100 CleanLabel° read5 electrolytes per tab: Na 180, K 77, Cl, Mg 20, Ca + Vit C/B12; 2:1 carb; low sugar; hypotonicINR 112
Reload Zero (Ice Current)
Fast&Up
78/100 CleanLabel° readZero-sugar electrolyte effervescentINR 247
Electrolyte Salt Caps
Unived
Shop / source
76/100 CleanLabel° readElectrolyte salt capsules; 100 caps; 132 g packINR 810
Recharge Electrolyte Mix
LMNT
71/100 CleanLabel° read1000 mg sodium, 200 mg potassium, 60 mg magnesium; zero sugarCheck current price
Supply6 Salts
Supply6
Shop / source
60/100 CleanLabel° readHydration salts product for electrolyte support; final SKU details stored from linked listingINR 430

06 - The ORS label trap

ORS is useful, but it is not automatically race fuel.

WHO-formula ORS is built for clinical rehydration, especially fluid loss from illness. That does not make it the best during-exercise fuel for HYROX. It can be sodium-heavy, light on race carbs, and easy to confuse with drinks that use ORS language without being the same thing.

ContextElectrorush Orange ORS Ready-to-Drink

Final Amazon-linked price snapshot: INR 940 for pack of 30

Orange ORS ready-to-drink electrolyte beverage; 200 ml bottles; sodium, potassium and dextrose; no caffeineShop / source

07 - Magnesium and cramps

Magnesium is support, not a cramp cure.

Cramps in HYROX are usually about fatigue, pacing, heat, sodium, or some mix of those. Magnesium is not a quick fix for wall balls. If you use it, the label still matters: glycinate, bisglycinate, and citrate are more defensible than oxide when absorption is the point.

The current Fast&Up pick here is Magnimax, which uses more defensible magnesium forms than basic oxide. Still, treat magnesium as support, not a cramp cure.

Magnesium options
ProductCleanLabel° readWhy it is herePrice snapshot
Magnimax
Fast&Up
Shop / source
75/100 CleanLabel° readTriple magnesium (bisglycinate, citrate, aspartate) + L-glycine, L-theanine, zinc; 6-in-1; stick packsINR 250
Chelated Magnesium Glycinate
Carbamide Forte
75/100 CleanLabel° read~340 mg elemental magnesium from ~2040 mg glycinate per 2-tab serving; chelatedINR 697

08 - The simple race-week rule

The best race-week plan should feel familiar.

The final plan should fit on one note: familiar carb meal, rehearsed gel timing, electrolyte bottle, no new products, and a post-race refill with sodium and normal food. If your sweat rate is still a guess, start with the sweat-rate calculator, then come back to the fuel planner.

Series guide

Where this sits.