Chronolio for Races & Endurance Events
A race is a schedule wearing running shoes: wave starts, aid station windows, road closures, and an awards ceremony that has to happen before sponsors leave. Chronolio keeps race day's moving parts in order.
The problems you know too well
Wave starts are a cascading schedule, not one gun
Staggered corrals, a road closure with a hard reopen time, and course sweep — one delayed wave pushes every subsequent wave, the road-closure clock, and the finish-line teardown, and the city permit doesn't care whose fault the delay was.
Volunteers run the course, and each needs one instruction
Aid station captains, course marshals, and sweep vehicle drivers are volunteers with a two-hour window — they need to know exactly when their job starts and ends, not the whole race-day plan, which most of them will never read past the first page anyway.
Weather changes the plan mid-morning, and word has to travel fast
A heat delay or lightning hold reshuffles start times, aid station staffing, and the awards ceremony all at once — and every minute that information doesn't reach the course is a minute of risk for runners already out there.
How Chronolio handles it
The whole day, cascading correctly
Packet pickup, wave starts, aid station windows, road closure, and awards all live on one timeline — delay a wave and the road-reopen and teardown times recalculate with it, instead of someone doing that math by hand at the finish line.
Learn more about Bulk Editing & Assignment →Marshals see one job, not the whole race
Assign volunteers to their aid station or course marshal slot and share the live link — each person sees exactly their window, on their own phone, no radio call required.
Learn more about Contact & Vendor Management →A weather delay reaches everyone at once
Shift the affected blocks and every volunteer with the link sees the new plan immediately — start delay, revised aid station times, and the new awards slot, all in sync.
Learn more about Sharing & Participants →Categories for every crew
Color-code start corrals, aid stations, medical, and awards so a fifty-item race-day schedule stays legible to whoever is reading it, whether that's a first-time volunteer or the race director themselves.
Learn more about Categories & Icons →Sample timeline: Half marathon race day
Generate a timeline like this for your own event in seconds — try it free.
Common questions
Can I schedule staggered wave starts and the road closure together?
Yes — build waves as sequential blocks and the road closure as a duration that follows them. If a wave delays, the reopen time recalculates so you never publish a closure window that's already wrong.
How do volunteers know their exact shift on race day?
Assign each volunteer to their aid station or marshal post and share the live link — they see their own window clearly, without needing the full race-day plan.
What happens if a weather delay pushes the whole schedule?
Bulk-shift the affected blocks and everyone holding the link — marshals, aid stations, medical — sees the updated plan immediately, without a round of radio calls.
Plan your next races & endurance event with Chronolio
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