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Crew Central

Training alone is normal. Racing alone doesn't have to be.

Months of solo early mornings. The quiet weight of a distance most people will never attempt. That's the reality of an ultra training block — and it's exactly why race day shouldn't be something you face alone. Crew Central brings your people into it: a shared plan your crew, pacers, and crew chief can all see, from aid station timelines to drop bags to the darkest miles of the night.

I'm Running a Race

Crew Event Hub

Create a dedicated crew event for each race. Share race details, goal times, and course info with your entire support team in one organized view.

Role-Based Roster

Assign crew chiefs, pacers, and support crew with specific responsibilities. Invite team members via magic-link email — no account required to view the plan.

Aid Station Timeline

Map every crew-accessible aid station with estimated arrival times, prep checklists, and crew assignments. Know exactly who needs to be where and when.

Drop Bags & Pacer Handoffs

Plan drop bag contents per station and schedule pacer exchange points with AI-generated handoff briefings tailored to each segment of the course.

CREW EVENT

Western States 100

June 28, 2025 · Olympic Valley → Auburn

Crew Chief: SarahPacer: Mike
AID STATION · MILE 62.7

Foresthill

Est. arrival: 14:30 · Pacer exchange

Chicken brothFresh socksHeadlamp
DROP BAG · MILE 38

Dusty Corners

3 items packed · Ready

TailwindGelsSunscreen

Crewing Someone?

Got a magic-link invite from a runner? You're part of someone's support system now — jump straight to the crew plan, no account needed.

Crewing FAQ

What does an ultra crew do?

An ultramarathon crew supports a runner during a long-distance race by meeting them at aid stations with food, hydration, gear changes, and medical monitoring. A crew chief coordinates logistics, manages timing between stations, and makes race-day decisions when the runner is too exhausted to think clearly.

How many people should crew a 100-miler?

Most 100-mile crews consist of 2 to 4 people including a crew chief. A typical setup is one crew chief who coordinates logistics, one to two support crew members who handle aid station duties, and one or more pacers who run alongside the runner in the later stages.

What is a pacer in ultrarunning?

A pacer is a runner who accompanies an ultramarathon competitor during the later stages of a race, typically from a designated mile marker (often around mile 50 to 70 in a 100-mile race) to the finish. Pacers provide company, keep the runner moving, monitor for distress, carry extra gear, and offer moral support through the night.

Do I need a crew for my first ultramarathon?

For 50K races, most runners do not need a crew. For 50-mile to 100K races, a crew is helpful but not always required if the race has well-staffed aid stations. For 100-mile and longer races, a crew is strongly recommended and in some cases required by race rules.

Powered by Ultrarunning.AI — the complete platform for ultrarunners

Ready to Start Planning?

Create a free account to build your race-day support system, invite your crew, assign pacers, and plan aid stations together.

Welcome to Ultrarunning.ai

The definitive ecosystem for athletes pushing their limits.

Train
AI-personalized plans from 50K to 200M, adapted to your fitness, race date, and terrain.
Crew
Coordinate race-day crew, pacers, aid stations, and drop bags with a shared live plan.
Race
Discover races, plan your pacing and nutrition, and visualize any course from a GPX file.

Free to start. Sign up and try the AI coach, race planner, and crew tools, no credit card.

Coming soon:Strava sync · iOS & Android apps (Add to Home Screen)
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