Race Preparation

Race Planner

Stop guessing on race day. Build a precise, crew-ready strategy for every mile: aid station splits, drop bag contents, crew windows, and pacer handoffs, all in one place.

1Upload Your Fitness Data (Optional, but improves accuracy)Paid
Get splits calibrated to your actual fitness

Upload your Garmin activity export and the planner predicts your aid station arrival times based on your real VO₂ max, training load, elevation history, and HR zone distribution — not a generic pace estimate.

  • Personalized splits based on your race data
  • Personalized drop bag recommendations based on your race data
  • Personalized crew & pacer notes based on your race data
$4
This Race
Full access for one event
Best Value
$19
Lifetime Access
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2Set Up Your Race

Load a Race

Choose how to set up your aid stations.

Race Details

min/mile

Used for timing predictions. Upload Garmin data in Step 1 for personalized splits.

Race Conditions

Heat, altitude, and darkness factors adjust your predicted pace. Historical weather data is fetched automatically when a race date and location are set.

HeatSet a race date to auto-fill

Drag to override. Based on 0-year historical average for this location and date. Weather data: Open-Meteo.com

Altitude
ft start elevation

Penalty applied above 5,000 ft for non-acclimated runners. Auto-filled for race presets.

Night RunningSet race date & location

Sunrise and sunset times are calculated from the race date and location. Disable if running with a very strong headlamp or fully acclimated to night running.

Aid Stations

Enter stations in order. Elevation gain is from the previous station.

1
3Calculate Timing

Build your timing plan first

Complete the Aid Station Timing tab and check "Drop bag" on the stations where you'll have bags. They'll appear here automatically.

Build your timing plan first

Complete the Aid Station Timing tab and check "Crew" on the stations your crew can reach. Arrival windows and crew timing will auto-populate here.

Build your timing plan first

Complete the Aid Station Timing tab to generate predicted arrival times. Pacer pickup and drop-off times will auto-populate from your plan.