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HYROX Race Pace Calculator
x402
HYROX Race Pace Calculator is a paid API for AI agents from wod-api-production.up.railway.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-18).
Calculates segment-by-segment pacing strategy for a target HYROX race finish time, including splits for each run and station, strategy tips, and a feasibility check against recent 5k performance.
Price / call$0.01
Success—
StatusUnknown
How this service works
Free: the programmed workout of the day (`/wod/today`, `/wod/week`, `/wod/day/{date}`). Paid with **x402, USDC on Base mainnet (eip155:8453)**: - `POST /wod/custom`: **$0.35 USDC**. Personalised programme (injuries, custom equipment, single session or multi-week progressive block) written by an AI coach with enforced movement substitutions. - `GET /wod`: **$0.05 USDC**. Rule-based custom workout by equipment, format and style. Requests that fail validation are rejected before any payment is requested, and failed generations are never settled. _HYROX is a registered trademark of its owner. WOD Coach is an independent product and is not affiliated with, endorsed by or sponsored by HYROX._
Output
A JSON object containing the target finish time, division, run pace per km, total time breakdowns (running, stations, roxzone), an array of per-segment clock and target times (e.g. Run 1, SkiErg 1000m), a list of pacing strategy tips, and an optional feasibility verdict if a 5k time was provided.
Example use cases
First-timer race day plan
“I'm doing my first HYROX next month and want to finish in 1:45:00 in the open division. Can you give me a segment-by-segment pacing plan so I know how fast to run each kilometer and how long to spend at each station?”
Feasibility check against 5k fitness
“I'm aiming for sub-1:15 at HYROX open but I'm not sure if I'm fit enough — my 5k PB is 21:10. Can you calculate my required splits and tell me if a 1:15:00 finish is realistic based on my running speed?”
Pro division competitive split planning
“I'm racing HYROX in the pro division and targeting 55 minutes. What are my required splits for each run leg and station, and what's my target run pace per kilometer?”
Technical details
Endpoint
GEThttps://wod-api-production.up.railway.app/tools/race-pace?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need structured, segment-level HYROX race pacing — covering every run kilometer and every station split — rather than a generic race pace calculator. Ideal when the user has a specific HYROX finish time goal and wants a full strategy with tips and optional fitness feasibility check based on their 5k time.
Side effects
- Target time outside 0:50:00–2:30:00 range returns validation error before payment
- Invalid division value returns schema validation error
- Malformed time format (not H:MM:SS or MM:SS) causes rejection
- Missing required 'target' query parameter causes rejection
- run_5k provided in wrong format returns parsing error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"target": "1:20:00",
"totals": {
"roxzone": "5:52",
"running": "37:20",
"stations": "36:48"
},
"division": "open",
"segments": [
{
"clock": "4:42",
"target": "4:40",
"segment": "Run 1 (1 km)"
},
{
"clock": "9:52",
"target": "4:48",
"segment": "SkiErg 1000 m"
}
],
"strategy": [
"Run 1 should feel easy: start 5-10 s/km slower than target."
],
"feasibility": {
"verdict": "ambitious: planned run pace is close to your 5 km pace"
},
"run_pace_per_km": "4:40"
}
}Tags
x402
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