Running pace per km and mile and speed from distance and time, plus Riegel race ...
https://saylorinnovations.com/api/health/running-paceOverview
Running pace per km and mile and speed from distance and time, plus Riegel race predictions for the mile, 5K, 10K, half marathon and marathon.
Protocol
x402
Price
$0.01
Payment Asset
USD Coin
Payment Network
eip155:8453
Category
uncategorized
Provider
Saylor Innovations Data Desk
Source
bazaar
Indexed
2026-10-20 15:24:32
Health
Status
healthy
Latency (p50)
334ms
Uptime (30d)
100.0%
Reliability Score
95/100
Last Checked
2026-10-28 15:24:13
Last Healthy
2026-10-28 15:24:13
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
Valid
Asset Verified
Known USDC
Facilitator
—
Input Schema
{
"method": "GET",
"queryParams": {
"distance": "10",
"time": "52:30",
"unit": "km"
},
"type": "http"
}
Output Schema
{
"example": {
"distance_meters": 10000,
"note": "Predictions use Riegel formula T2 = T1 x (D2/D1)^1.06. They assume similar training and conditions, and are least reliable far from the distance you ran.",
"pace_per_km": "5:15",
"pace_per_mile": "8:27",
"predictions": [
{
"distance_meters": 1609.344,
"pace_per_km": "4:42",
"pace_per_mile": "7:34",
"predicted_time": "7:34",
"race": "1 mile"
},
{
"distance_meters": 5000,
"pace_per_km": "5:02",
"pace_per_mile": "8:06",
"predicted_time": "25:11",
"race": "5K"
},
{
"distance_meters": 10000,
"pace_per_km": "5:15",
"pace_per_mile": "8:27",
"predicted_time": "52:30",
"race": "10K"
},
{
"distance_meters": 15000,
"pace_per_km": "5:23",
"pace_per_mile": "8:39",
"predicted_time": "1:20:41",
"race": "15K"
},
{
"distance_meters": 16093.44,
"pace_per_km": "5:24",
"pace_per_mile": "8:42",
"predicted_time": "1:26:56",
"race": "10 miles"
},
{
"distance_meters": 21097.5,
"pace_per_km": "5:29",
"pace_per_mile": "8:50",
"predicted_time": "1:55:50",
"race": "half marathon"
},
{
"distance_meters": 42195,
"pace_per_km": "5:43",
"pace_per_mile": "9:13",
"predicted_time": "4:01:31",
"race": "marathon"
}
],
"source": "Riegel race time prediction formula",
"speed_kmh": 11.429,
"speed_mph": 7.101,
"time": "52:30",
"time_seconds": 3150
},
"type": "json"
}
Recent Health Checks
| Time | Status | HTTP | Latency | Error |
|---|---|---|---|---|
| 2026-10-28 15:24:13 | healthy | 402 | 2043ms | |
| 2026-10-28 14:18:36 | healthy | 402 | 336ms | |
| 2026-10-28 06:59:27 | healthy | 402 | 329ms | |
| 2026-10-28 05:37:49 | healthy | 402 | 245ms | |
| 2026-10-28 04:39:46 | healthy | 402 | 326ms | |
| 2026-10-28 03:45:53 | healthy | 402 | 214ms | |
| 2026-10-28 02:45:50 | healthy | 402 | 349ms | |
| 2026-10-28 01:41:47 | healthy | 402 | 423ms | |
| 2026-10-28 00:35:37 | healthy | 402 | 239ms | |
| 2026-10-27 23:39:22 | healthy | 402 | 264ms | |
| 2026-10-27 22:53:20 | healthy | 402 | 326ms | |
| 2026-10-27 21:42:30 | healthy | 402 | 354ms | |
| 2026-10-27 20:27:31 | healthy | 402 | 395ms | |
| 2026-10-27 19:22:10 | healthy | 402 | 334ms | |
| 2026-10-26 08:00:36 | healthy | 402 | 283ms | |
| 2026-10-26 00:23:41 | healthy | 402 | 820ms |