{
  "calculator": "race-week-taper",
  "title": "Race-Week Taper Planner",
  "site": "AI Fit Hub",
  "input": {},
  "defaults_used": {
    "peak_volume": 80,
    "peak_intensity": 3,
    "taper_start_weeks_before": 2,
    "race_distance": "marathon"
  },
  "result": {
    "optimalVolumeCutPct": 55,
    "raceDistance": "marathon",
    "taperStartWeeksBefore": 2,
    "weeklyPlan": [
      {
        "weekFromRace": 2,
        "volumeKm": 44.8,
        "volumeCutPct": 44,
        "intensitySessions": 3,
        "longestRunKm": 20.2,
        "notes": "Keep the pace of quality sessions and the number of runs; shorten the reps, easy runs and long run."
      },
      {
        "weekFromRace": 1,
        "volumeKm": 27.2,
        "volumeCutPct": 66,
        "intensitySessions": 2,
        "longestRunKm": 12.2,
        "notes": "Race week: every usual run, all short, with a few race-pace strides; nothing new, sleep and carbs first."
      }
    ],
    "intensityRetentionPct": 100,
    "frequencyReductionPct": 0
  },
  "provenance": {
    "run": "https://aifithub.io/api/run/race-week-taper",
    "page": "https://aifithub.io/race-week-taper/",
    "methodology": "https://aifithub.io/methodology/race-week-taper/",
    "contract": "https://aifithub.io/contracts/race-week-taper.json",
    "engine": "https://aifithub.io/engines/race-week-taper.js",
    "engine_sha256": "3ce2a74b7862738e9a9dd6a5966a838cc3864ee24aeb1b1c77bc63278cc6199e",
    "build": "9e8a56a16bda662ba90601b49561a2b176e9c379"
  },
  "disclaimer": "General fitness estimates — not medical advice.",
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "cite": "AI Fit Hub, Race-Week Taper Planner (engine 3ce2a74b7862), https://aifithub.io/api/run/race-week-taper"
}