How Efficient Runners Move Through Checkpoints

race day pacing race preparation running mindset ultra running
Trail Notes | Trail Racing Strategy
the art of the aid station

How Efficient Runners

move through checkpoints

Practical guide   12 min read   Ultra & Long Trail
 

A long trail race is not only a running problem. It is a logistics problem. Fitness matters, but so does your ability to keep momentum when you reach the tables, chairs, bright lights, friendly volunteers, and the quiet temptation to just sit for a second.

In some mountain ultramarathon research, time stopped has been linked to overall performance, with faster runners tending to stop less. That suggests aid stations are not minor details. They are part of your race outcome.

Aid stations are where minutes quietly compound. The goal is not to rush so hard you miss fuel or safety. The goal is to remove friction so you can keep moving with steady confidence.

Section 01

The simple equation that changes everything

The time math

Your race time is your forward motion plus everything that interrupts it. Aid stations matter because race time keeps running even when you are standing still.

5 minutes lost at each of 8 checkpoints is 40 minutes off your finish. That is the difference between a target time and a story about what could have been. The good news is that aid station time is one of the easiest variables to influence with practice and structure.

You do not need to sprint through. You need a system that is simple enough to execute when your brain is tired and your legs are heavy.

Section 02

Why aid stations get harder later in the race

Aid stations become more sticky as fatigue builds. This is not just motivation. It is physiology and cognition.

In long ultramarathons that include major sleep restriction, cognitive performance can drop. That matters because aid stations demand decision-making: what to eat, what to carry, what to change, how to adjust your plan, and whether something is a minor discomfort or a developing problem.

When cognition is taxed, simple routines protect you.

Section 03

The 4-part aid station system

Efficient athletes do not wing it in the aid station. They follow a small system that reduces decisions. A simple 4-step rhythm protects momentum even when your thinking is slow.

Approach

In the final 2 minutes before the checkpoint, slow your breathing, fix your fuelling plan, and mentally rehearse the order of tasks.

Execute

Do only what is required for the next segment. Refill fluids, take calories, adjust layers, fix one problem if needed.

Exit

Leave while you are still warm. If you need to eat, begin walking out while chewing.

Reset

Once you are back on trail, do a 20 to 40 second check-in: breath, posture, fuelling timer, mood.

Section 04

Refuelling decisions that support speed and stability

Aid station efficiency only matters if you leave fuelled. Under-fuelling creates bigger problems later in the race, often hours after the decision is made.

For long efforts, build toward about 60 grams of carbohydrate per hour, starting at 40 to 50 grams if fuelling is new to you, and up to 90 grams only if your gut is trained for it. Start fuelling in the first 30 to 45 minutes. In some ultramarathon field studies, higher carbohydrate and energy intake has been associated with faster segment speed and better overall performance.

Aid station rule

Leave each checkpoint with a plan for the first 20 minutes.

If you often forget to eat, set a timer the moment you leave the tables. That one action can help prevent a common late-race crash.

Hydration is more nuanced. Overdrinking can be just as problematic as underdrinking. A practical approach is to drink steadily according to conditions, thirst, and your own sweat patterns rather than forcing large volumes at the table.

Section 05

The cognitive reset that keeps you moving

Because cognition can degrade late in long events, a micro reset helps you make fewer mistakes. 20 seconds of structured attention out of the aid station is one of the highest-leverage habits in long racing.

Body

Shoulders down, jaw soft, breathe low into the belly.

Fuel

What is my next bite and when am I taking it.

Feet

Hot spots, grit in socks, lace tension.

Mind

One simple task for the next 10 minutes.

Field card

Approach. Execute. Exit. Reset.

If you can do those 4 things under fatigue, you can protect hours of performance from being lost in minutes.

Aid stations are not pauses from the race. They are part of the race. When you move through them with calm structure, you protect your rhythm, your energy, and your confidence.

 
move with intention, finish with energy
Coach written | Her Trails

Written by Samantha Gash, drawing on ultramarathon performance research and field experience guiding long-course athletes.

Last reviewed 2026
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