Osaka 
Guadalajara 
Seoul 
Monastir 
Sofia 1 
Barranquilla 
Hersonissos 3 
Grodzisk Mazowiecki 
Davis Сup Group I Tennis. Played Harris Billy. Season 2025
Country 
England. Ranking ATP 148.
England. Ranking ATP 148. Chicago | ||||
|---|---|---|---|---|
| 05.08.2025 | First round | Johns Garrett — Harris Billy | 2:1 (3:6, 6:3, 6:4) |
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| ATP - Legg Masson Tennis Classic | ||||
| 21.07.2025 | First round | Norrie Cameron — Harris Billy | 2:0 (6:3, 7:6) |
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| 20.07.2025 | Qialification final | Harris Billy — Bouzige Moerani | 2:0 (6:4, 7:6) |
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| 19.07.2025 | Qualifications - 1st round | Harris Billy — Gengel Marek | 2:0 (6:1, 7:5) |
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| ATP - Wimbledon | ||||
| 02.07.2025 | Second round | Borges Nuno — Harris Billy | 3:0 (6:3, 6:4, 7:6) |
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| 30.06.2025 | First round | Harris Billy — Hurkacz Hubert | — — |
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| 30.06.2025 | First round | Harris Billy — Lajovic Dusan | 3:0 (6:3, 6:2, 6:4) |
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| ATP - Eastbourne | ||||
| 26.06.2025 | Quarter-finals | Harris Billy — Humbert Ugo | 0:2 (6:7, 1:6) |
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| 25.06.2025 | Second round | Harris Billy — Bellucci Mattia | 2:0 (6:3, 6:4) |
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| 24.06.2025 | First round | Harris Billy — Norrie Cameron | 2:0 (6:4, 6:4) |
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| 22.06.2025 | Qialification final | Harris Billy — Loffhagen George | 0:2 (6:7, 2:6) |
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| 21.06.2025 | Qualifications - 1st round | Nardi Luca — Harris Billy | 0:2 (3:6, 4:6) |
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| ATP - The Stella Artois Championships | ||||
| 17.06.2025 | First round | Diallo Gabriel — Harris Billy | 2:1 (6:1, 3:6, 6:4) |
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| Ilkley Challenger | ||||
| 12.06.2025 | Second round | Pinnington Jones Jack — Harris Billy | 2:1 (7:6, 4:6, 6:3) |
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| 10.06.2025 | First round | Gojo Borna — Harris Billy | 0:2 (2:6, 3:6) |
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| Birmingham | ||||
| 02.06.2025 | First round | Hijikata Rinky — Harris Billy | 2:1 (6:1, 3:6, 6:4) |
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 ATP - French Open | ||||
| 20.05.2025 | Qualifications - 1st round | Harris Billy — Evans Daniel | 0:2 (5:7, 3:6) |
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| Bordeaux Challenger | ||||
| 15.05.2025 | Second round | Griekspoor Tallon — Harris Billy | 2:0 (6:3, 6:4) |
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| 13.05.2025 | First round | Wawrinka Stan — Harris Billy | 1:2 (6:3, 2:6, 1:6) |
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 ATP - Internazionali BNL d'Italia - Rome | ||||
| 05.05.2025 | Qualifications - 1st round | Harris Billy — Barrios Vera Tomas | 0:2 (2:6, 4:6) |
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| Aix En Provence | ||||
| 29.04.2025 | First round | Elahi Galan Daniel — Harris Billy | 2:0 (6:2, 6:2) |
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 ATP - Masters Series Madrid | ||||
| 21.04.2025 | Qualifications - 1st round | Quinn Ethan — Harris Billy | 2:0 (6:3, 6:4) |
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 ATP - BMW Open | ||||
| 14.04.2025 | First round | Goffin David — Harris Billy | 2:1 (6:2, 6:7, 6:4) |
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| 13.04.2025 | Qialification final | Tseng Chun Hsin — Harris Billy | 2:1 (4:6, 7:6, 6:2) |
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| 12.04.2025 | Qualifications - 1st round | Harris Billy — Vukic Aleksandar | 2:1 (3:6, 6:3, 6:4) |
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| Madrid | ||||
| 08.04.2025 | First round | Harris Billy — Ofner Sebastian | 1:2 (6:4, 3:6, 5:7) |
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| Menorca | ||||
| 01.04.2025 | First round | Harris Billy — Ramos-Vinolas Albert | 1:2 (2:6, 6:4, 4:6) |
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| ATP - NASDAQ-100 | ||||
| 20.03.2025 | First round | Spizzirri Eliot — Harris Billy | 2:1 (7:6, 3:6, 6:2) |
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| 18.03.2025 | Qialification final | Gaston Hugo — Harris Billy | 0:2 (5:7, 2:6) |
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| 17.03.2025 | Qualifications - 1st round | Ymer Mikael — Harris Billy | 1:2 (7:6, 6:7, 3:6) |
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 Cap Cana | ||||
| 11.03.2025 | First round | Wong Chak Lam Coleman — Harris Billy | 2:1 (6:3, 6:7, 6:4) |
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| ATP - Pacific Life Open | ||||
| 04.03.2025 | Qualifications - 1st round | Mmoh Michael — Harris Billy | 2:0 (6:3, 6:2) |
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 Bengalaru | ||||
| 01.03.2025 | Semi-finals | Holt Brandon — Harris Billy | 2:0 (6:2, 7:6) |
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| 28.02.2025 | Quarter-finals | Harris Billy — Schoolkate Tristan | 2:1 (6:2, 1:6, 7:5) |
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| 26.02.2025 | Second round | Harris Billy — Gengel Marek | 2:0 (6:4, 6:3) |
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| 25.02.2025 | First round | Harris Billy — Couacaud Enzo (Retired) | 1:0 (6:1, 1:0) |
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| Pune | ||||
| 21.02.2025 | Quarter-finals | Harris Billy — Holt Brandon | 1:2 (6:4, 3:6, 4:6) |
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| 20.02.2025 | Second round | Harris Billy — Moriya Hiroki | 2:0 (7:5, 6:3) |
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| New Delhi | ||||
| 16.02.2025 | Final | Jacquet Kyrian — Harris Billy | 2:0 (6:4, 6:2) |
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| 15.02.2025 | Semi-finals | Schoolkate Tristan — Harris Billy | 1:2 (6:4, 6:7, 2:6) |
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| 14.02.2025 | Quarter-finals | Ymer Elias — Harris Billy | 1:2 (2:6, 6:4, 6:7) |
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| 13.02.2025 | Second round | McCabe James — Harris Billy | 0:2 (6:7, 3:6) |
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| 11.02.2025 | First round | Vanshelboim Eric — Harris Billy | 0:2 (1:6, 4:6) |
|
 Chennai | ||||
| 08.02.2025 | Semi-finals | Ymer Elias — Harris Billy | 2:0 (7:6, 7:6) |
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| 07.02.2025 | Quarter-finals | Harris Billy — Skatov Timofey | 2:0 (6:3, 7:6) |
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| 06.02.2025 | Second round | Harris Billy — Kirkin Ergi | 2:0 (6:3, 6:3) |
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| 04.02.2025 | First round | Harris Billy — Vanshelboim Eric | 2:0 (7:5, 6:2) |
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 Hopman Cup | ||||
| 02.01.2025 | Quarter-finals | Hurkacz Hubert — Harris Billy | 2:0 (7:6, 7:5) |
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| 01.01.2025 | Harris Billy — De Minaur Alex | 0:2 (2:6, 1:6) |
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| 30.12.2024 | Harris Billy — Etcheverry Tomas Martin | 1:2 (6:3, 3:6, 2:6) |
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