{
  "description": "記録開始週(2026-W28)から直近の完了週まで、全週次データ。LIMIT句を使わず全期間を取得しているため、将来週が増えても打ち切られません。公開後に成績が悪化した週があっても、さかのぼって削除・非表示にはしません。",
  "basis_date": "2026-08-13",
  "population_definition": "void_race=false AND late_snapshot=false",
  "weekly": [
    { "iso_week": "2026-W28", "date_from": "2026-07-12", "date_to": "2026-07-12", "n": 15,   "hit_1st_pct": 40.0,  "hit_top2_pct": 60.0,  "hit_top3_pct": 86.67, "hit_trifecta_pct": 6.67 },
    { "iso_week": "2026-W29", "date_from": "2026-07-13", "date_to": "2026-07-19", "n": 915,  "hit_1st_pct": 53.77, "hit_top2_pct": 73.77, "hit_top3_pct": 84.26, "hit_trifecta_pct": 7.98 },
    { "iso_week": "2026-W30", "date_from": "2026-07-20", "date_to": "2026-07-26", "n": 1116, "hit_1st_pct": 54.75, "hit_top2_pct": 72.94, "hit_top3_pct": 81.27, "hit_trifecta_pct": 10.3 },
    { "iso_week": "2026-W31", "date_from": "2026-07-27", "date_to": "2026-08-02", "n": 1054, "hit_1st_pct": 57.78, "hit_top2_pct": 76.0,  "hit_top3_pct": 84.82, "hit_trifecta_pct": 9.96 },
    { "iso_week": "2026-W32", "date_from": "2026-08-03", "date_to": "2026-08-09", "n": 1007, "hit_1st_pct": 57.8,  "hit_top2_pct": 75.57, "hit_top3_pct": 86.69, "hit_trifecta_pct": 7.55 },
    { "iso_week": "2026-W33", "date_from": "2026-08-10", "date_to": "2026-08-13", "n": 684,  "hit_1st_pct": 54.53, "hit_top2_pct": 73.98, "hit_top3_pct": 83.33, "hit_trifecta_pct": 8.48 }
  ],
  "weekly_n_sum": 4791,
  "matches_all_time_n": true
}