{
  "description": "締切後記録(late_snapshot=true・予想の記録時刻が投票締切より後)として集計から除外した全件の明細。2026-09-14 16:27 JST 時点(基準日 2026-09-13)。原因の調査と判定(スケジューラーの処理待ち行列の遅延が締切5分前の余裕を使い切った境界事象・不具合ではない)は 2026-09-11 の調査 late_snapshot_detail_20260911.json に記載。9/13 発生の26件も遅延 4.3〜27.1 秒で同じ型。",
  "basis_date": "2026-09-13",
  "generated_at_jst": "2026-09-14T16:27:04+09:00",
  "count": 52,
  "by_date": [
    {
      "race_date": "2026-08-17",
      "count": 2,
      "late_seconds_min": 8.5,
      "late_seconds_max": 22.4
    },
    {
      "race_date": "2026-08-26",
      "count": 8,
      "late_seconds_min": 2.0,
      "late_seconds_max": 25.6
    },
    {
      "race_date": "2026-08-30",
      "count": 4,
      "late_seconds_min": 1.1,
      "late_seconds_max": 22.6
    },
    {
      "race_date": "2026-09-03",
      "count": 3,
      "late_seconds_min": 1.5,
      "late_seconds_max": 6.1
    },
    {
      "race_date": "2026-09-05",
      "count": 9,
      "late_seconds_min": 6.1,
      "late_seconds_max": 25.6
    },
    {
      "race_date": "2026-09-13",
      "count": 26,
      "late_seconds_min": 4.3,
      "late_seconds_max": 27.1
    }
  ],
  "late_only_hit_rates": {
    "n": 52,
    "hit_1st_pct": 55.77,
    "hit_top3_pct": 84.62,
    "hit_trifecta_count": 1
  },
  "late_seconds": {
    "min": 1.1,
    "max": 27.1,
    "avg": 15.2
  },
  "rows": [
    {
      "race_date": "2026-08-17",
      "stadium_id": 2,
      "race_number": 11,
      "late_seconds": 8.5,
      "hit_1st": false,
      "hit_top3": false,
      "hit_trifecta": false
    },
    {
      "race_date": "2026-08-17",
      "stadium_id": 22,
      "race_number": 9,
      "late_seconds": 22.4,
      "hit_1st": true,
      "hit_top3": true,
      "hit_trifecta": false
    },
    {
      "race_date": "2026-08-26",
      "stadium_id": 1,
      "race_number": 4,
      "late_seconds": 13.0,
      "hit_1st": false,
      "hit_top3": true,
      "hit_trifecta": false
    },
    {
      "race_date": "2026-08-26",
      "stadium_id": 3,
      "race_number": 4,
      "late_seconds": 22.0,
      "hit_1st": false,
      "hit_top3": true,
      "hit_trifecta": false
    },
    {
      "race_date": "2026-08-26",
      "stadium_id": 6,
      "race_number": 10,
      "late_seconds": 25.0,
      "hit_1st": false,
      "hit_top3": true,
      "hit_trifecta": false
    },
    {
      "race_date": "2026-08-26",
      "stadium_id": 8,
      "race_number": 5,
      "late_seconds": 25.6,
      "hit_1st": false,
      "hit_top3": true,
      "hit_trifecta": false
    },
    {
      "race_date": "2026-08-26",
      "stadium_id": 10,
      "race_number": 9,
      "late_seconds": 17.7,
      "hit_1st": true,
      "hit_top3": true,
      "hit_trifecta": false
    },
    {
      "race_date": "2026-08-26",
      "stadium_id": 11,
      "race_number": 12,
      "late_seconds": 2.0,
      "hit_1st": true,
      "hit_top3": true,
      "hit_trifecta": false
    },
    {
      "race_date": "2026-08-26",
      "stadium_id": 18,
      "race_number": 9,
      "late_seconds": 25.5,
      "hit_1st": true,
      "hit_top3": true,
      "hit_trifecta": false
    },
    {
      "race_date": "2026-08-26",
      "stadium_id": 18,
      "race_number": 11,
      "late_seconds": 5.5,
      "hit_1st": true,
      "hit_top3": true,
      "hit_trifecta": false
    },
    {
      "race_date": "2026-08-30",
      "stadium_id": 1,
      "race_number": 4,
      "late_seconds": 16.8,
      "hit_1st": false,
      "hit_top3": true,
      "hit_trifecta": false
    },
    {
      "race_date": "2026-08-30",
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      "race_number": 12,
      "late_seconds": 22.6,
      "hit_1st": true,
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      "hit_trifecta": false
    },
    {
      "race_date": "2026-08-30",
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      "late_seconds": 1.1,
      "hit_1st": true,
      "hit_top3": true,
      "hit_trifecta": false
    },
    {
      "race_date": "2026-08-30",
      "stadium_id": 11,
      "race_number": 6,
      "late_seconds": 9.8,
      "hit_1st": true,
      "hit_top3": true,
      "hit_trifecta": false
    },
    {
      "race_date": "2026-09-03",
      "stadium_id": 8,
      "race_number": 12,
      "late_seconds": 6.1,
      "hit_1st": true,
      "hit_top3": true,
      "hit_trifecta": false
    },
    {
      "race_date": "2026-09-03",
      "stadium_id": 19,
      "race_number": 3,
      "late_seconds": 1.5,
      "hit_1st": true,
      "hit_top3": true,
      "hit_trifecta": false
    },
    {
      "race_date": "2026-09-03",
      "stadium_id": 20,
      "race_number": 3,
      "late_seconds": 2.7,
      "hit_1st": false,
      "hit_top3": true,
      "hit_trifecta": false
    },
    {
      "race_date": "2026-09-05",
      "stadium_id": 1,
      "race_number": 3,
      "late_seconds": 12.6,
      "hit_1st": true,
      "hit_top3": true,
      "hit_trifecta": false
    },
    {
      "race_date": "2026-09-05",
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      "race_number": 12,
      "late_seconds": 18.4,
      "hit_1st": true,
      "hit_top3": true,
      "hit_trifecta": false
    },
    {
      "race_date": "2026-09-05",
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      "hit_1st": false,
      "hit_top3": false,
      "hit_trifecta": false
    },
    {
      "race_date": "2026-09-05",
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    {
      "race_date": "2026-09-05",
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      "race_number": 12,
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      "hit_1st": true,
      "hit_top3": true,
      "hit_trifecta": false
    },
    {
      "race_date": "2026-09-05",
      "stadium_id": 13,
      "race_number": 11,
      "late_seconds": 7.8,
      "hit_1st": false,
      "hit_top3": true,
      "hit_trifecta": false
    },
    {
      "race_date": "2026-09-05",
      "stadium_id": 20,
      "race_number": 2,
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      "hit_1st": false,
      "hit_top3": false,
      "hit_trifecta": false
    },
    {
      "race_date": "2026-09-05",
      "stadium_id": 22,
      "race_number": 8,
      "late_seconds": 11.9,
      "hit_1st": true,
      "hit_top3": true,
      "hit_trifecta": false
    },
    {
      "race_date": "2026-09-05",
      "stadium_id": 22,
      "race_number": 10,
      "late_seconds": 25.6,
      "hit_1st": false,
      "hit_top3": true,
      "hit_trifecta": false
    },
    {
      "race_date": "2026-09-13",
      "stadium_id": 2,
      "race_number": 11,
      "late_seconds": 7.3,
      "hit_1st": true,
      "hit_top3": true,
      "hit_trifecta": true
    },
    {
      "race_date": "2026-09-13",
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      "race_number": 3,
      "late_seconds": 22.4,
      "hit_1st": true,
      "hit_top3": true,
      "hit_trifecta": false
    },
    {
      "race_date": "2026-09-13",
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      "race_number": 4,
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      "hit_1st": false,
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      "hit_trifecta": false
    },
    {
      "race_date": "2026-09-13",
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      "hit_top3": false,
      "hit_trifecta": false
    },
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      "race_date": "2026-09-13",
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      "hit_1st": true,
      "hit_top3": true,
      "hit_trifecta": false
    },
    {
      "race_date": "2026-09-13",
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      "race_number": 3,
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      "hit_1st": false,
      "hit_top3": false,
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    },
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      "race_date": "2026-09-13",
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      "hit_1st": true,
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      "hit_1st": false,
      "hit_top3": true,
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    },
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      "race_date": "2026-09-13",
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    },
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      "race_date": "2026-09-13",
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      "hit_1st": false,
      "hit_top3": true,
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    },
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      "hit_1st": true,
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      "race_date": "2026-09-13",
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      "race_date": "2026-09-13",
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      "hit_1st": false,
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    },
    {
      "race_date": "2026-09-13",
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      "race_date": "2026-09-13",
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      "hit_1st": true,
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    },
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    },
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      "hit_1st": true,
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      "hit_trifecta": false
    },
    {
      "race_date": "2026-09-13",
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    },
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      "race_date": "2026-09-13",
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      "race_number": 8,
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      "hit_1st": true,
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      "hit_trifecta": false
    },
    {
      "race_date": "2026-09-13",
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      "race_number": 9,
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      "hit_1st": false,
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      "hit_trifecta": false
    },
    {
      "race_date": "2026-09-13",
      "stadium_id": 21,
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      "hit_1st": true,
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    },
    {
      "race_date": "2026-09-13",
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      "race_number": 9,
      "late_seconds": 7.5,
      "hit_1st": false,
      "hit_top3": true,
      "hit_trifecta": false
    },
    {
      "race_date": "2026-09-13",
      "stadium_id": 22,
      "race_number": 10,
      "late_seconds": 23.0,
      "hit_1st": true,
      "hit_top3": true,
      "hit_trifecta": false
    }
  ]
}