Player Data JSON
Obtiene datos completos de un jugador en formato JSON para alimentar LLMs
Haruka Kaji
2W - 7L
22.2% Win Rate
Forma: LWLWLLLLL
JSON Data
{
"player": {
"id": 141,
"api_id": 80535,
"name": "Haruka Kaji",
"short_name": "H. Kaji",
"country": "Japan",
"country_code": "JP",
"gender": "Female",
"circuit": "WTA",
"date_of_birth": "1994-09-25",
"height_cm": null,
"weight_kg": null,
"plays": "",
"turned_pro": null
},
"utr": {
"id": 51821,
"singles": 11.06,
"doubles": 10.74,
"ranking": 441,
"division": "Pro",
"is_pro": true,
"updated_at": "2025-12-07"
},
"current_ranking": {
"position": 304,
"points": 214,
"best_position": 213,
"date": "2025-12-10"
},
"ranking_history": [
{
"date": "2025-12-10",
"position": 304,
"points": 214
},
{
"date": "2025-12-09",
"position": 304,
"points": 214
},
{
"date": "2025-12-08",
"position": 304,
"points": 214
},
{
"date": "2025-12-07",
"position": 305,
"points": 214
},
{
"date": "2025-12-06",
"position": 305,
"points": 214
},
{
"date": "2025-12-05",
"position": 305,
"points": 214
},
{
"date": "2025-12-04",
"position": 305,
"points": 214
},
{
"date": "2025-12-03",
"position": 305,
"points": 214
}
],
"career_stats": {
"total_matches": 9,
"wins": 2,
"losses": 7,
"win_rate": 22.2
},
"surface_stats": {
"hard": {
"matches": 6,
"wins": 2,
"losses": 4,
"win_rate": 33.3
},
"clay": {
"matches": 3,
"wins": 0,
"losses": 3,
"win_rate": 0.0
},
"grass": {
"matches": 0,
"wins": 0,
"losses": 0,
"win_rate": 0
}
},
"category_stats": {
"Grand Slam": {
"matches": 1,
"wins": 0,
"losses": 1,
"win_rate": 0.0
},
"WTA 250": {
"matches": 8,
"wins": 2,
"losses": 6,
"win_rate": 25.0
}
},
"average_match_stats": {
"matches_with_stats": 9,
"avg_aces_per_match": 1.1,
"avg_double_faults_per_match": 2.0,
"avg_first_serve_pct": 71.9,
"avg_first_serve_won_pct": 53.3,
"avg_second_serve_won_pct": 41.2,
"avg_break_points_converted_pct": null
},
"recent_form": [
{
"date": "2025-10-26",
"opponent": "Kristiana Sidorova",
"opponent_id": 414874,
"tournament": "Hong Kong",
"surface": "hard",
"round": "Qualification Final",
"result": "L",
"score": "0-2",
"stats": {
"aces": 1,
"double_faults": 1,
"first_serve_pct": 74.28571428571429,
"first_serve_won_pct": 50.0,
"second_serve_won_pct": 51.85185185185185,
"break_points_converted_pct": null,
"total_points_won": null
}
},
{
"date": "2025-10-25",
"opponent": "Kallista Liu",
"opponent_id": 479889,
"tournament": "Hong Kong",
"surface": "hard",
"round": "Qualification Round 1",
"result": "W",
"score": "2-0",
"stats": {
"aces": 4,
"double_faults": 6,
"first_serve_pct": 68.65671641791045,
"first_serve_won_pct": 73.91304347826086,
"second_serve_won_pct": 48.0,
"break_points_converted_pct": null,
"total_points_won": null
}
},
{
"date": "2025-10-15",
"opponent": "Xinyu Gao",
"opponent_id": 150130,
"tournament": "WTA 125K Jinan, China Women Singles",
"surface": "hard",
"round": "Round of 16",
"result": "L",
"score": "0-2",
"stats": {
"aces": 1,
"double_faults": 0,
"first_serve_pct": 70.96774193548387,
"first_serve_won_pct": 56.81818181818182,
"second_serve_won_pct": 57.14285714285714,
"break_points_converted_pct": null,
"total_points_won": null
}
},
{
"date": "2025-10-13",
"opponent": "Yufei Ren",
"opponent_id": 455715,
"tournament": "WTA 125K Jinan, China Women Singles",
"surface": "hard",
"round": "Round of 32",
"result": "W",
"score": "2-1",
"stats": {
"aces": 2,
"double_faults": 1,
"first_serve_pct": 66.98113207547169,
"first_serve_won_pct": 59.154929577464785,
"second_serve_won_pct": 24.324324324324326,
"break_points_converted_pct": null,
"total_points_won": null
}
},
{
"date": "2025-06-10",
"opponent": "Maria Carle",
"opponent_id": 141892,
"tournament": "Valencia, Spain",
"surface": "clay",
"round": "Round of 32",
"result": "L",
"score": "0-2",
"stats": {
"aces": 0,
"double_faults": 2,
"first_serve_pct": 51.85185185185185,
"first_serve_won_pct": 42.857142857142854,
"second_serve_won_pct": 34.61538461538461,
"break_points_converted_pct": null,
"total_points_won": null
}
},
{
"date": "2025-06-03",
"opponent": "Anna Bondar",
"opponent_id": 150574,
"tournament": "Bari, Italy",
"surface": "clay",
"round": "Round of 32",
"result": "L",
"score": "0-2",
"stats": {
"aces": 0,
"double_faults": 1,
"first_serve_pct": 75.55555555555556,
"first_serve_won_pct": 44.11764705882353,
"second_serve_won_pct": 45.45454545454545,
"break_points_converted_pct": null,
"total_points_won": null
}
},
{
"date": "2025-05-19",
"opponent": "Margaux Rouvroy",
"opponent_id": 248273,
"tournament": "Roland Garros",
"surface": "clay",
"round": "Qualification Round 1",
"result": "L",
"score": "1-2",
"stats": {
"aces": 1,
"double_faults": 3,
"first_serve_pct": 81.53846153846153,
"first_serve_won_pct": 54.71698113207547,
"second_serve_won_pct": 37.5,
"break_points_converted_pct": null,
"total_points_won": null
}
},
{
"date": "2025-01-04",
"opponent": "Renata Zarazua",
"opponent_id": 111189,
"tournament": "Hobart",
"surface": "hard",
"round": "Qualification Round 1",
"result": "L",
"score": "0-2",
"stats": {
"aces": 0,
"double_faults": 2,
"first_serve_pct": 80.45977011494253,
"first_serve_won_pct": 51.42857142857142,
"second_serve_won_pct": 52.94117647058824,
"break_points_converted_pct": null,
"total_points_won": null
}
},
{
"date": "2024-12-27",
"opponent": "Lucrezia Stefanini",
"opponent_id": 155890,
"tournament": "Auckland",
"surface": "hard",
"round": "",
"result": "L",
"score": "0-2",
"stats": {
"aces": 1,
"double_faults": 2,
"first_serve_pct": 76.71232876712328,
"first_serve_won_pct": 46.42857142857143,
"second_serve_won_pct": 35.294117647058826,
"break_points_converted_pct": null,
"total_points_won": null
}
}
],
"form_summary": {
"last_10_matches": 9,
"wins": 2,
"losses": 7,
"form_string": "LWLWLLLLL"
},
"head_to_head": [
{
"opponent": "Xinyu Gao",
"opponent_id": 150130,
"matches": 1,
"wins": 0,
"losses": 1
},
{
"opponent": "Kristiana Sidorova",
"opponent_id": 414874,
"matches": 1,
"wins": 0,
"losses": 1
},
{
"opponent": "Yufei Ren",
"opponent_id": 455715,
"matches": 1,
"wins": 1,
"losses": 0
},
{
"opponent": "Kallista Liu",
"opponent_id": 479889,
"matches": 1,
"wins": 1,
"losses": 0
},
{
"opponent": "Maria Carle",
"opponent_id": 141892,
"matches": 1,
"wins": 0,
"losses": 1
}
],
"upcoming_matches": [],
"year_statistics": [
{
"year": 2025,
"surfaces": {
"hardcourt_outdoor": {
"matches": 4,
"wins": 1,
"losses": 3,
"win_rate": 25.0,
"tournaments_played": 4,
"tournaments_won": 0,
"tiebreaks_won": 1,
"tiebreaks_lost": 1,
"aces": 6,
"double_faults": 11,
"aces_per_match": 1.5,
"double_faults_per_match": 2.8,
"first_serve_pct": 80.3,
"first_serve_won_pct": 54.5,
"second_serve_won_pct": 53.2,
"break_points_saved_pct": 66.0,
"break_points_converted_pct": 41.2,
"winners_total": 0,
"unforced_errors_total": 0
},
"red_clay": {
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"losses": 3,
"win_rate": 0.0,
"tournaments_played": 3,
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"tiebreaks_lost": 1,
"aces": 1,
"double_faults": 6,
"aces_per_match": 0.3,
"double_faults_per_match": 2.0,
"first_serve_pct": 79.0,
"first_serve_won_pct": 50.6,
"second_serve_won_pct": 41.8,
"break_points_saved_pct": 40.0,
"break_points_converted_pct": 28.1,
"winners_total": 0,
"unforced_errors_total": 0
}
},
"totals": {
"matches": 7,
"wins": 1,
"tournaments_played": 7,
"tournaments_won": 0,
"aces": 7,
"double_faults": 17,
"win_rate": 14.3,
"losses": 6
}
},
{
"year": 2024,
"surfaces": {
"hardcourt_indoor": {
"matches": 4,
"wins": 3,
"losses": 1,
"win_rate": 75.0,
"tournaments_played": 2,
"tournaments_won": 0,
"tiebreaks_won": 1,
"tiebreaks_lost": 0,
"aces": 6,
"double_faults": 6,
"aces_per_match": 1.5,
"double_faults_per_match": 1.5,
"first_serve_pct": 76.0,
"first_serve_won_pct": 59.8,
"second_serve_won_pct": 60.2,
"break_points_saved_pct": 75.6,
"break_points_converted_pct": 40.4,
"winners_total": 0,
"unforced_errors_total": 0
},
"hardcourt_outdoor": {
"matches": 2,
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"losses": 2,
"win_rate": 0.0,
"tournaments_played": 24,
"tournaments_won": 0,
"tiebreaks_won": 0,
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"aces": 0,
"double_faults": 7,
"aces_per_match": 0.0,
"double_faults_per_match": 3.5,
"first_serve_pct": 83.4,
"first_serve_won_pct": 55.0,
"second_serve_won_pct": 50.0,
"break_points_saved_pct": 50.0,
"break_points_converted_pct": 50.0,
"winners_total": 0,
"unforced_errors_total": 0
}
},
"totals": {
"matches": 6,
"wins": 3,
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"tournaments_won": 0,
"aces": 6,
"double_faults": 13,
"win_rate": 50.0,
"losses": 3
}
},
{
"year": 2023,
"surfaces": {
"hardcourt_outdoor": {
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"losses": 1,
"win_rate": 50.0,
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"tiebreaks_lost": 0,
"aces": 1,
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"aces_per_match": 0.5,
"double_faults_per_match": 3.0,
"first_serve_pct": 73.2,
"first_serve_won_pct": 58.7,
"second_serve_won_pct": 48.1,
"break_points_saved_pct": 72.4,
"break_points_converted_pct": 42.9,
"winners_total": 0,
"unforced_errors_total": 0
}
},
"totals": {
"matches": 2,
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"tournaments_won": 0,
"aces": 1,
"double_faults": 6,
"win_rate": 50.0,
"losses": 1
}
}
],
"data_generated_at": "2025-12-10 08:48:47 UTC"
}