{
  "calculator": "marathon-pace-elevation",
  "title": "Marathon Pace + Elevation Calculator",
  "site": "AI Fit Hub",
  "input": {},
  "defaults_used": {
    "target_distance_km": 42.195,
    "target_time_minutes": 240,
    "total_elevation_gain_m": 200,
    "total_elevation_loss_m": 200
  },
  "result": {
    "targetDistanceKm": 42.195,
    "targetTimeMinutes": 240,
    "averagePaceSecondsPerKm": 341,
    "averagePaceLabel": "5:41",
    "flatEquivalentPaceSecondsPerKm": 338,
    "flatEquivalentPaceLabel": "5:38",
    "netElevationCorrectionSeconds": 150,
    "segments": [
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        "segmentKm": 1,
        "paceSecondsPerKm": 341.2726626377533,
        "paceLabel": "5:41"
      },
      {
        "segmentKm": 2,
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        "paceLabel": "5:41"
      },
      {
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        "paceSecondsPerKm": 341.2726626377533,
        "paceLabel": "5:41"
      },
      {
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        "paceSecondsPerKm": 341.2726626377533,
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      {
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      },
      {
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      },
      {
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      {
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      {
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      {
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      {
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      {
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      {
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      {
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      {
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      {
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      {
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      {
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      {
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      {
        "segmentKm": 25,
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      {
        "segmentKm": 26,
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      {
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      {
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      {
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      {
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      {
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      {
        "segmentKm": 32,
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      {
        "segmentKm": 33,
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      {
        "segmentKm": 34,
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      },
      {
        "segmentKm": 35,
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      },
      {
        "segmentKm": 36,
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      },
      {
        "segmentKm": 37,
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      },
      {
        "segmentKm": 38,
        "paceSecondsPerKm": 341.2726626377533,
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      },
      {
        "segmentKm": 39,
        "paceSecondsPerKm": 341.2726626377533,
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      },
      {
        "segmentKm": 40,
        "paceSecondsPerKm": 341.2726626377533,
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      },
      {
        "segmentKm": 41,
        "paceSecondsPerKm": 341.2726626377533,
        "paceLabel": "5:41"
      },
      {
        "segmentKm": 42,
        "paceSecondsPerKm": 341.2726626377533,
        "paceLabel": "5:41"
      },
      {
        "segmentKm": 42.195,
        "paceSecondsPerKm": 341.2726626377533,
        "paceLabel": "5:41"
      }
    ],
    "difficulty": "flat"
  },
  "provenance": {
    "run": "https://aifithub.io/api/run/marathon-pace-elevation",
    "page": "https://aifithub.io/marathon-pace-elevation/",
    "methodology": "https://aifithub.io/methodology/marathon-pace-elevation/",
    "contract": "https://aifithub.io/contracts/marathon-pace-elevation.json",
    "engine": "https://aifithub.io/engines/marathon-pace-elevation.js",
    "engine_sha256": "98fe8ef3c6d4477299e50519d802548f982c3ea610228c847daed1c663539c22",
    "build": "9e8a56a16bda662ba90601b49561a2b176e9c379"
  },
  "disclaimer": "General fitness estimates — not medical advice.",
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "cite": "AI Fit Hub, Marathon Pace + Elevation Calculator (engine 98fe8ef3c6d4), https://aifithub.io/api/run/marathon-pace-elevation"
}