RACE NUTRITION PLANNER: TRIATHLON & ENDURANCE FUELING STRATEGY

How to Build Your Race-Day Nutrition Plan

Race-day nutrition is not something to leave to chance. The athletes who perform consistently well — regardless of distance or conditions — are the ones who have a clear, practised fueling plan and stick to it. This guide walks you through how to build a complete race nutrition strategy for triathlon, cycling, and ultra running, using science-backed principles and Hammer Nutrition's endurance fuel range.

The Three Pillars of Race Nutrition

Every effective race nutrition plan is built on three pillars working together:

• Carbohydrates — your primary fuel source during sustained effort; must be replenished continuously in events over 60 minutes
• Electrolytes — minerals lost through sweat that regulate fluid balance, nerve function, and muscle contraction
• Hydration — fluid intake to replace sweat losses and support all physiological processes

Get all three right and you'll perform to your potential. Neglect any one of them and you'll pay for it — usually in the second half of the race.

Step 1: Know Your Event Duration

The length of your event determines your fueling strategy more than almost any other factor:

• Under 60 minutes: Pre-race glycogen stores are sufficient. Focus on hydration and electrolytes only.
• 1–2 hours (Sprint/Olympic triathlon, road race, half marathon): Begin fueling at 45 minutes. Hammer Gel every 45–60 minutes with water. Endurolytes every hour.
• 2–4 hours (Middle-distance triathlon, sportive, marathon): Begin fueling at 30 minutes. Hammer Gel or HEED every 45 minutes. Endurolytes every 30–60 minutes.
• 4+ hours (Ironman, ultra marathon, century ride): Begin fueling at 20–30 minutes. Transition to Perpetuem for sustained multi-hour fueling. Endurolytes Extreme every 30 minutes.

Step 2: Choose Your Fuel

Hammer Gel — Fast, Versatile Energy

Hammer Gel is the go-to fuel for events up to around 3 hours. Maltodextrin-based (no simple sugars), it delivers clean, steady energy without GI distress. Available in single-serve packets for racing or economy jugs for training. Take with water, never with a sugary drink.

HEED — Energy + Electrolytes in One Drink

HEED (High Energy Electrolyte Drink) combines complex carbohydrates with a full electrolyte profile in a single drink. Ideal for shorter events or athletes who prefer a drink over gels. No citric acid, no simple sugars, no artificial ingredients. Works well alongside Hammer Gel on longer efforts — alternate between the two to vary intake.

Perpetuem — Sustained Fuel for Long Efforts

Perpetuem is Hammer's flagship ultra-endurance fuel. It combines complex carbohydrates, soy protein, and healthy fats in a formula designed to sustain energy output over many hours. The protein component helps spare muscle glycogen and reduces muscle breakdown during very long efforts. For events over 3–4 hours, Perpetuem is the most effective single-source fuel available.

Many athletes use Hammer Gel for the first 2–3 hours, then transition to Perpetuem as the event progresses and the digestive system needs a more complete fuel source.

Step 3: Plan Your Electrolytes

Electrolyte replacement is non-negotiable in events over 60 minutes. Use Endurolytes capsules alongside your fuel of choice:

• Cool conditions: 1 capsule per hour
• Warm/moderate conditions: 2 capsules per hour
• Hot/humid or heavy sweaters: Endurolytes Extreme, 1–2 capsules per 30 minutes

Start electrolyte replacement early — within the first 30 minutes of racing — and maintain a consistent schedule. Don't wait until you cramp.

Step 4: Hydration

Aim to drink to thirst rather than forcing large volumes of fluid. Overdrinking plain water is a leading cause of hyponatraemia (low blood sodium) in endurance events. General guidelines:

• 500–750ml of fluid per hour in cool conditions
• 750ml–1 litre per hour in warm/hot conditions
• Always take gels with water, not sports drinks
• Use Endurolytes Fizz in your water bottle for a light electrolyte drink between aid stations

Race Nutrition Plans by Discipline

Triathlon Nutrition Plan

• Swim: No fueling possible — ensure pre-race nutrition is solid.
• T1: Take first Endurolytes capsule. Sip water.
• Bike: Hammer Gel or HEED every 45 minutes. Endurolytes every 30–60 minutes. For Ironman bike leg, use Perpetuem in bottles.
• T2: Endurolytes capsule. Small sip of water.
• Run: Hammer Gel at aid stations (every 45–60 minutes). Endurolytes every 30 minutes. Water at every station.
• Finish: Recoverite within 30 minutes to begin recovery.

Cycling Nutrition Plan (Sportive / Century Ride)

• First 30 minutes: Water only.
• 30 minutes onwards: Hammer Gel every 45 minutes. Endurolytes every 30–60 minutes.
• Hour 3+: Transition to Perpetuem in a bottle for hands-free fueling on the bike.
• Feed stops: Top up water. Avoid sugary feed station products that will conflict with your plan.
• Post-ride: Recoverite within 30 minutes.

Ultra Running Nutrition Plan

• First hour: Hammer Gel every 45 minutes. Endurolytes every 30 minutes.
• Hours 2–3: Mix Hammer Gel and Perpetuem. Increase Endurolytes if sweating heavily.
• Hour 3+: Perpetuem as primary fuel. Hammer Gel for variety or quick energy boosts at checkpoints.
• Aid stations: Stick to your plan — avoid unfamiliar foods that may cause GI distress.
• Night sections: Espresso-flavour Hammer Gel provides a natural caffeine boost.
• Finish: Recoverite immediately post-race.

Pre-Race Nutrition

What you eat in the 24–48 hours before your race matters as much as race-day fueling. Key principles:

• Increase carbohydrate intake in the 24–48 hours before to top up glycogen stores
• Eat your pre-race meal 2–3 hours before the start — complex carbs, moderate protein, low fat and fibre
• Avoid new foods on race morning — stick to what you've practised in training
• Hydrate well the day before; don't try to catch up on race morning
• Take 2–3 Endurolytes capsules with your pre-race meal

Post-Race Recovery

The 30–60 minute window after finishing is the most important time for recovery nutrition. Glycogen resynthesis and muscle protein repair are at their peak during this window. Recoverite provides the ideal 3:1 carbohydrate-to-protein ratio alongside glutamine and other recovery nutrients to accelerate the process.

Practice Makes Perfect

The golden rule of race nutrition: never try anything new on race day. Every element of your nutrition plan — products, doses, timing, and combinations — should be tested and refined in training. Your gut adapts to mid-exercise fueling over time, and what works for another athlete may not work for you.

Build your plan, test it in your long training sessions, and refine it over the weeks leading up to your event.

Shop Race Nutrition

• Hammer Gel — fast, clean energy for racing
• HEED — energy + electrolytes in one drink
• Perpetuem — sustained fuel for long efforts
• Endurolytes — balanced electrolyte capsules
• Endurolytes Extreme — high-sodium for hot conditions
• Recoverite — post-race recovery drink
• Endurance Fuel Kits — bundled race nutrition packs

Need help building a personalised race nutrition plan? Contact our team — we're endurance athletes and happy to help.