Player Data JSON

{
  "player": {
    "id": 1154,
    "api_id": 216457,
    "name": "Ayumi Koshiishi",
    "short_name": "A. Koshiishi",
    "country": "Japan",
    "country_code": "JP",
    "gender": "Female",
    "circuit": "WTA",
    "date_of_birth": "2000-07-28",
    "height_cm": null,
    "weight_kg": null,
    "plays": "",
    "turned_pro": null
  },
  "utr": {
    "id": 4064337,
    "singles": 10.87,
    "doubles": 10.0,
    "ranking": 552,
    "division": "Pro",
    "is_pro": true,
    "updated_at": "2025-12-07"
  },
  "current_ranking": {
    "position": 452,
    "points": 124,
    "best_position": 367,
    "date": "2025-12-10"
  },
  "ranking_history": [
    {
      "date": "2025-12-10",
      "position": 452,
      "points": 124
    },
    {
      "date": "2025-12-09",
      "position": 452,
      "points": 124
    },
    {
      "date": "2025-12-08",
      "position": 452,
      "points": 124
    },
    {
      "date": "2025-12-07",
      "position": 449,
      "points": 124
    },
    {
      "date": "2025-12-06",
      "position": 449,
      "points": 124
    },
    {
      "date": "2025-12-05",
      "position": 449,
      "points": 124
    },
    {
      "date": "2025-12-04",
      "position": 449,
      "points": 124
    },
    {
      "date": "2025-12-03",
      "position": 449,
      "points": 124
    }
  ],
  "career_stats": {
    "total_matches": 1,
    "wins": 0,
    "losses": 1,
    "win_rate": 0.0
  },
  "surface_stats": {
    "hard": {
      "matches": 1,
      "wins": 0,
      "losses": 1,
      "win_rate": 0.0
    },
    "clay": {
      "matches": 0,
      "wins": 0,
      "losses": 0,
      "win_rate": 0
    },
    "grass": {
      "matches": 0,
      "wins": 0,
      "losses": 0,
      "win_rate": 0
    }
  },
  "category_stats": {
    "WTA 250": {
      "matches": 1,
      "wins": 0,
      "losses": 1,
      "win_rate": 0.0
    }
  },
  "average_match_stats": {
    "matches_with_stats": 1,
    "avg_aces_per_match": 5.0,
    "avg_double_faults_per_match": 2.0,
    "avg_first_serve_pct": 62.5,
    "avg_first_serve_won_pct": 67.7,
    "avg_second_serve_won_pct": 38.5,
    "avg_break_points_converted_pct": null
  },
  "recent_form": [
    {
      "date": "2025-10-13",
      "opponent": "Priska Madelyn Nugroho",
      "opponent_id": 291270,
      "tournament": "WTA 125K Jinan, China Women Singles",
      "surface": "hard",
      "round": "Qualification Round 1",
      "result": "L",
      "score": "1-2",
      "stats": {
        "aces": 5,
        "double_faults": 2,
        "first_serve_pct": 62.5,
        "first_serve_won_pct": 67.6923076923077,
        "second_serve_won_pct": 44.89795918367347,
        "break_points_converted_pct": null,
        "total_points_won": null
      }
    }
  ],
  "form_summary": {
    "last_10_matches": 1,
    "wins": 0,
    "losses": 1,
    "form_string": "L"
  },
  "head_to_head": [
    {
      "opponent": "Priska Madelyn Nugroho",
      "opponent_id": 291270,
      "matches": 1,
      "wins": 0,
      "losses": 1
    }
  ],
  "upcoming_matches": [],
  "year_statistics": [
    {
      "year": 2025,
      "surfaces": {
        "hard": {
          "matches": 1,
          "wins": 0,
          "losses": 1,
          "win_rate": 0.0,
          "tournaments_played": 0,
          "tournaments_won": 0,
          "tiebreaks_won": 0,
          "tiebreaks_lost": 0,
          "aces": 0,
          "double_faults": 0,
          "aces_per_match": 0.0,
          "double_faults_per_match": 0.0,
          "first_serve_pct": 0,
          "first_serve_won_pct": 0,
          "second_serve_won_pct": 0,
          "break_points_saved_pct": 0,
          "break_points_converted_pct": 0,
          "winners_total": 0,
          "unforced_errors_total": 0
        }
      },
      "totals": {
        "matches": 1,
        "wins": 0,
        "tournaments_played": 0,
        "tournaments_won": 0,
        "aces": 0,
        "double_faults": 0,
        "win_rate": 0.0,
        "losses": 1
      }
    }
  ],
  "data_generated_at": "2025-12-10 13:05:37 UTC"
}