{
  "calculator": "sweat-rate-electrolyte-marathon",
  "title": "Sweat-Rate + Electrolyte Marathon Plan",
  "site": "AI Fit Hub",
  "input": {},
  "defaults_used": {
    "pre_weight_kg": 70,
    "post_weight_kg": 68.5,
    "fluid_consumed_ml": 800,
    "duration_minutes": 240,
    "climate": "temp"
  },
  "result": {
    "fluidIntakePerHourMl": 460,
    "sodiumPerHourMg": 529,
    "sweatRateLPerHour": 0.57,
    "totalSweatLossL": 2.3,
    "bodyMassLossPct": 2.1,
    "riskFlag": "watch",
    "preRacePlanMl": 400,
    "preRaceWindowHours": 4,
    "postRacePlanMl": 2250,
    "notes": []
  },
  "provenance": {
    "run": "https://aifithub.io/api/run/sweat-rate-electrolyte-marathon",
    "page": "https://aifithub.io/sweat-rate-electrolyte-marathon/",
    "methodology": "https://aifithub.io/methodology/sweat-rate-electrolyte-marathon/",
    "contract": "https://aifithub.io/contracts/sweat-rate-electrolyte-marathon.json",
    "engine": "https://aifithub.io/engines/sweat-rate-electrolyte-marathon.js",
    "engine_sha256": "66cadc595d1659c6add1ce3b2003d341a21c6a553aa0e1464ddbffd4f35e1922",
    "build": "9e8a56a16bda662ba90601b49561a2b176e9c379"
  },
  "disclaimer": "General fitness estimates — not medical advice.",
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "cite": "AI Fit Hub, Sweat-Rate + Electrolyte Marathon Plan (engine 66cadc595d16), https://aifithub.io/api/run/sweat-rate-electrolyte-marathon"
}