Endufueler

Endurance fueling, made practical

Take the guesswork out of endurance fueling.

Build a fueling plan to practice in training and bring to race day. Endufueler turns your event, preferred fuel, and course setup into clear timing, packing, and practical guidance.

Build your fueling plan See how it works

Create an account to build and save plans.

Plan preview

Marathon fueling plan

On target

Carbs

63.5 g/h

Target 65 g/h

Fluid

638 ml/h

Target 650 ml/h

Sodium

433 mg/h

Target 500 mg/h

Selected plan actions

Before start

Take 1 × energy gel

25 g carbs · Drink water to preference

Every 20 min

Drink 225 ml prepared carbohydrate drink

18 g carbs · 135 mg sodium

At 10, 20, 30 km

Refill from confirmed water support

Course support included in the carrying plan

Prepare and carry

Energy gel2 gels
Prepared drink2550 ml
Confirmed support3 locations

Sodium is below the current target. Review the plan before practicing it.

Illustrative plan generated from generic nutrition values and confirmed course support.

What is Endufueler?

Plan. Practice. Pack. Race.

Endufueler connects the numbers behind endurance fueling with the practical decisions you make in training, while packing, and on the course.

01
Plan

Turn your event, conditions, fuel preferences, and course support into one clear strategy.

02
Practice

Rehearse the plan in training and learn how its timing and quantities fit your routine.

03
Pack

Know what to prepare, carry, and collect along the course before you reach the start line.

04
Race

Bring clear timing, course cues, and practical guidance into the event you prepared for.

What you get

Personal fueling targets

A clear starting point for carbohydrate, hydration, and sodium.

Practical timing

Turn hourly goals into actions you can follow and rehearse.

Course-aware planning

Account for what you carry and where support is available.

Packing and guidance

Know what to prepare and what still needs attention.

How it works

From event details to a plan you can practice.

Build the strategy in four focused steps, then use training to decide how well it fits you before event day.

1
Define the effort

Set the sport, distance, expected duration, intensity, and conditions you are preparing for.

2
Choose how you fuel

Select the fuel formats you prefer and use familiar nutrition details where they matter.

3
Add course support

Confirm what you can carry and where water, refills, or your own supplies will be available.

4
Build and refine the plan

Review the timing, packing quantities, coverage, and cautions before practicing the plan.

Built for real preparation

Useful detail without false certainty.

Endufueler makes the plan specific enough to follow while keeping the choices, tradeoffs, and cautions visible.

Built around your experience

Targets account for the event, conditions, and the amount of fuel you are used to taking.

Fuel choices stay in your control

Plan with gels, drinks, solids, or your own custom nutrition values without prescribing a brand.

Targets become a real sequence

Translate hourly goals into timed actions that reflect what you carry and where support appears.

Gaps remain visible

Compare planned and target amounts, then review warnings and assumptions instead of hiding uncertainty.

A plan to practice, not a promise to follow blindly.

Endurance fueling is personal. Endufueler provides a structured starting point, shows how the plan compares with its targets, and keeps cautions visible. Practice it in training and adjust your inputs from experience before the event.

Fueling plan builder

Turn preparation into a plan.

Bring your event, preferred fuel, carrying setup, and confirmed course support together. Leave with timing, packing, coverage, and guidance you can use in training.

Build your fueling plan

Sign in or create an account when you are ready to save a plan.

Planned versus target

Plan coverage

1 item to review

Carbs

63.5 g/h planned · 65 g/h target

98%

Fluid

638 ml/h planned · 650 ml/h target

98%

Sodium

433 mg/h planned · 500 mg/h target

87%

Packing accounted for

Generic fuel and prepared volume are included.

Course support confirmed

Three water refill locations shape the sequence.

FAQ

Questions before you build a plan.

Start with the details you know. The plan remains clearest when your fuel choices, carrying setup, and course support match what you intend to practice.