{
  "schema": "fleetedge_web_validation_study_v1",
  "computed_at": "2026-07-02",
  "source": {
    "kind": "pinned_publication_snapshot",
    "run_id": "2026-07-01T17-03-23-845_9b379279",
    "reader": ".github/skills/fleetedge-web-race-result-pages/scripts/fleet-read.mjs snapshot"
  },
  "fairness": {
    "cohort": "class-aware race cells, ORC+IRC rated, observed field >= 6; podium = rank <= 3; dedupe best rank per boat per cell",
    "cells": 572,
    "observations": 7652,
    "podium_places": 1754,
    "rows": [
      {
        "archetype": "AEROBLADE",
        "participation_pct": 22.9,
        "podium_pct": 29.5,
        "ratio": 1.29,
        "ci95_lo_pct": 27.4,
        "ci95_hi_pct": 31.7
      },
      {
        "archetype": "DEEPFRAME",
        "participation_pct": 17.4,
        "podium_pct": 21.4,
        "ratio": 1.23,
        "ci95_lo_pct": 19.5,
        "ci95_hi_pct": 23.4
      },
      {
        "archetype": "AEROMAX",
        "participation_pct": 15.9,
        "podium_pct": 9.0,
        "ratio": 0.56,
        "ci95_lo_pct": 7.7,
        "ci95_hi_pct": 10.4
      },
      {
        "archetype": "GRAVITYRUN",
        "participation_pct": 12.9,
        "podium_pct": 7.7,
        "ratio": 0.6,
        "ci95_lo_pct": 6.5,
        "ci95_hi_pct": 9.0
      },
      {
        "archetype": "GLIDEFORM",
        "participation_pct": 10.5,
        "podium_pct": 11.1,
        "ratio": 1.06,
        "ci95_lo_pct": 9.7,
        "ci95_hi_pct": 12.7
      },
      {
        "archetype": "STORMLINE",
        "participation_pct": 4.2,
        "podium_pct": 5.0,
        "ratio": 1.17,
        "ci95_lo_pct": 4.0,
        "ci95_hi_pct": 6.1
      },
      {
        "archetype": "IRONWIND",
        "participation_pct": 4.1,
        "podium_pct": 4.8,
        "ratio": 1.16,
        "ci95_lo_pct": 3.9,
        "ci95_hi_pct": 5.9
      },
      {
        "archetype": "STEELCORE",
        "participation_pct": 4.1,
        "podium_pct": 5.0,
        "ratio": 1.23,
        "ci95_lo_pct": 4.1,
        "ci95_hi_pct": 6.1
      },
      {
        "archetype": "HEADFORCE",
        "participation_pct": 3.2,
        "podium_pct": 1.9,
        "ratio": 0.58,
        "ci95_lo_pct": 1.3,
        "ci95_hi_pct": 2.6
      },
      {
        "archetype": "STEELFORM",
        "participation_pct": 2.4,
        "podium_pct": 2.6,
        "ratio": 1.08,
        "ci95_lo_pct": 1.9,
        "ci95_hi_pct": 3.4
      },
      {
        "archetype": "KEELFLEX",
        "participation_pct": 2.4,
        "podium_pct": 2.1,
        "ratio": 0.9,
        "ci95_lo_pct": 1.5,
        "ci95_hi_pct": 2.9
      }
    ],
    "sensitivity": "stable at field \u2265 8 (383 cells, 6,445 observations; ratio range 0.56\u20131.38)"
  },
  "crew_residual": {
    "archetypes_n30": 11,
    "between_archetype_median_spread_sec_per_nm": 56.4,
    "median_within_archetype_iqr_sec_per_nm": 113.5,
    "polarity": "negative = better (canonical)"
  },
  "bridge": {
    "orc_cert": {
      "n_obs": 1388,
      "median_abs_delta_sec_per_nm": 40.7,
      "ci95": [
        38.2,
        43.9
      ]
    },
    "mapped_irc_twin": {
      "n_obs": 94,
      "median_abs_delta_sec_per_nm": 52.1,
      "ci95": [
        34.8,
        68.4
      ]
    },
    "delta_definition": "per-event actual vs ORC-median predicted pace gap (event_race_performance.delta_sec_per_nm)"
  }
}