{
  "calculator": "race-time-predictor",
  "title": "Race Time Predictor",
  "site": "AI Fit Hub",
  "input": {
    "known_distance_km": 10,
    "known_time_minutes": 50
  },
  "defaults_used": {},
  "result": {
    "predictions": [
      {
        "label": "5K",
        "distanceKm": 5,
        "timeMinutes": 23.98160298313161,
        "paceMinPerKm": 4.796320596626321,
        "paceMinPerMile": 7.718929774256991,
        "difficultyDelta": 0.9592641193252642
      },
      {
        "label": "10K",
        "distanceKm": 10,
        "timeMinutes": 50,
        "paceMinPerKm": 5,
        "paceMinPerMile": 8.04672,
        "difficultyDelta": 1
      },
      {
        "label": "Half Marathon",
        "distanceKm": 21.0975,
        "timeMinutes": 110.32015405342617,
        "paceMinPerKm": 5.229062877280539,
        "paceMinPerMile": 8.415360967174172,
        "difficultyDelta": 1.0458125754561078
      },
      {
        "label": "Marathon",
        "distanceKm": 42.195,
        "timeMinutes": 230.0099666628293,
        "paceMinPerKm": 5.451119010850321,
        "paceMinPerMile": 8.772725673397899,
        "difficultyDelta": 1.090223802170064
      }
    ],
    "baselinePaceMinPerKm": 5,
    "baselinePaceMinPerMile": 8.04672
  },
  "provenance": {
    "run": "https://aifithub.io/api/run/race-time-predictor?known_distance_km=10&known_time_minutes=50",
    "page": "https://aifithub.io/race-time-predictor/",
    "methodology": "https://aifithub.io/methodology/race-time-predictor/",
    "contract": "https://aifithub.io/contracts/race-time-predictor.json",
    "engine": "https://aifithub.io/engines/race-time-predictor.js",
    "engine_sha256": "0d8975199107e83e75ae1bbfae097db75580bb38d169e99c879c7e8655a9eeee",
    "build": "9e8a56a16bda662ba90601b49561a2b176e9c379"
  },
  "disclaimer": "General fitness estimates — not medical advice.",
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "cite": "AI Fit Hub, Race Time Predictor (engine 0d8975199107), https://aifithub.io/api/run/race-time-predictor?known_distance_km=10&known_time_minutes=50"
}