Seoul 
Monastir 
Campinas 
Davis Сup Group I Tennis. Played Ruud Casper. Season 2023
Country 
Norway. Ranking ATP 9.
Norway. Ranking ATP 9. ATP - China Open | ||||
|---|---|---|---|---|
| 02.10.2023 | Quarter-finals | Alcaraz Carlos — Ruud Casper | 2:0 (6:4, 6:2) |
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| 01.10.2023 | Second round | Etcheverry Tomas Martin — Ruud Casper | 1:2 (6:1, 5:7, 6:7) |
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| 29.09.2023 | First round | Struff Jan-Lennard — Ruud Casper | 0:2 (6:7, 3:6) |
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 ATP - US Open | ||||
| 31.08.2023 | Second round | Ruud Casper — Zhang Zhizhen | 2:3 (4:6, 7:5, 2:6, 6:0, 2:6) |
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| 28.08.2023 | First round | Ruud Casper — Nava Emilio | 3:1 (7:6, 3:6, 6:4, 7:6) |
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| ATP - Western & Southern Financial Group Masters | ||||
| 16.08.2023 | Second round | Purcell Max — Ruud Casper | 2:1 (6:4, 3:6, 6:4) |
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 ATP - Rogers Masters | ||||
| 10.08.2023 | Third round | Davidovich Fokina Alejandro — Ruud Casper | 2:1 (7:6, 4:6, 7:6) |
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| 09.08.2023 | Second round | Lehecka Jiri — Ruud Casper | 0:2 (6:7, 4:6) |
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 ATP - Masters Series Hamburg | ||||
| 28.07.2023 | Quarter-finals | Ruud Casper — Fils Arthur | 0:2 (0:6, 4:6) |
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| 27.07.2023 | Second round | Ruud Casper — Garin Cristian | 2:1 (1:6, 6:2, 6:2) |
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| 26.07.2023 | First round | Ruud Casper — Baez Sebastian | 2:1 (6:3, 1:6, 6:3) |
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 ATP - Synsam Swedish open | ||||
| 23.07.2023 | Final | Ruud Casper — Rublev Andrey | 0:2 (6:7, 0:6) |
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| 22.07.2023 | Semi-finals | Ruud Casper — Musetti Lorenzo | 2:0 (6:3, 7:5) |
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| 21.07.2023 | Quarter-finals | Ruud Casper — Ofner Sebastian | 2:0 (6:3, 6:4) |
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| 20.07.2023 | Second round | Ruud Casper — Shevchenko Alexander | 2:0 (6:2, 6:4) |
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 ATP - Wimbledon | ||||
| 06.07.2023 | Second round | Broady Liam — Ruud Casper | 3:2 (6:4, 3:6, 4:6, 6:3, 6:0) |
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| 03.07.2023 | First round | Lokoli Laurent — Ruud Casper | 1:3 (1:6, 7:5, 4:6, 3:6) |
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 ATP - Geneva Open | ||||
| 25.05.2023 | Quarter-finals | Jarry Nicolas — Ruud Casper | 2:1 (3:6, 7:6, 7:5) |
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| 24.05.2023 | Second round | Ruud Casper — Wolf Jeff | 2:0 (6:3, 7:5) |
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 ATP - Internazionali BNL d'Italia - Rome | ||||
| 20.05.2023 | Semi-finals | Rune Holger — Ruud Casper | 2:1 (6:7, 6:4, 6:2) |
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| 17.05.2023 | Quarter-finals | Ruud Casper — Cerundolo Francisco | 2:0 (7:6, 6:4) |
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| 16.05.2023 | 4th Round | Ruud Casper — Djere Laslo | 2:0 (6:1, 6:3) |
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| 14.05.2023 | Third round | Ruud Casper — Bublik Alexander | 2:1 (6:1, 4:6, 7:6) |
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| 12.05.2023 | Second round | Ruud Casper — Rinderknech Arthur | 2:0 (6:4, 6:0) |
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 ATP - Masters Series Madrid | ||||
| 28.04.2023 | Second round | Ruud Casper — Arnaldi Matteo | 0:2 (3:6, 4:6) |
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| ATP - Open SEAT Godo | ||||
| 20.04.2023 | Third round | Ruud Casper — Cerundolo Francisco | 0:2 (6:7, 3:6) |
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| 18.04.2023 | Second round | Ruud Casper — Shelton Ben | 2:0 (6:2, 7:6) |
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 ATP - Masters Series Monte-Carlo | ||||
| 13.04.2023 | Third round | Struff Jan-Lennard — Ruud Casper | 2:0 (6:1, 7:6) |
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| 12.04.2023 | Second round | Van De Zandschulp Botic — Ruud Casper | 0:2 (5:7, 6:7) |
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 ATP - Estoril Open | ||||
| 09.04.2023 | Final | Ruud Casper — Kecmanovic Miomir | 2:0 (6:2, 7:6) |
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| 08.04.2023 | Semi-finals | Ruud Casper — Halys Quentin | 2:1 (6:4, 3:6, 7:6) |
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| 07.04.2023 | Quarter-finals | Ruud Casper — Baez Sebastian | 2:0 (6:3, 6:0) |
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| 05.04.2023 | Second round | Ruud Casper — Sousa Joao | 2:1 (4:6, 6:2, 6:2) |
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| ATP - NASDAQ-100 | ||||
| 27.03.2023 | Third round | Van De Zandschulp Botic — Ruud Casper | 2:1 (3:6, 6:4, 6:4) |
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| 25.03.2023 | Second round | Ruud Casper — Ivashka Ilya | 2:0 (6:2, 6:3) |
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| ATP - Pacific Life Open | ||||
| 12.03.2023 | Third round | Garin Cristian — Ruud Casper | 2:0 (6:4, 7:6) |
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| 10.03.2023 | Second round | Schwartzman Diego Sebastian — Ruud Casper | 0:2 (2:6, 3:6) |
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 ATP - Abierto Mexicano Telcel | ||||
| 02.03.2023 | Second round | Daniel Taro — Ruud Casper | 2:1 (7:5, 2:6, 7:6) |
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| 28.02.2023 | First round | Andreozzi Guido — Ruud Casper | 1:2 (4:6, 6:4, 6:7) |
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 ATP - Australian Open | ||||
| 19.01.2023 | Second round | Brooksby Jenson — Ruud Casper | 3:1 (6:3, 7:5, 6:7, 6:2) |
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| 17.01.2023 | First round | Machac Tomas — Ruud Casper | 1:3 (3:6, 6:7, 7:6, 3:6) |
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 ATP - Heineken Open | ||||
| 11.01.2023 | Second round | Ruud Casper — Djere Laslo | 1:2 (6:3, 3:6, 6:7) |
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| Hopman Cup | ||||
| 03.01.2023 | Berrettini Matteo — Ruud Casper | 2:0 (6:4, 6:4) |
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| 01.01.2023 | Monteiro Thiago Moura — Ruud Casper | 0:2 (3:6, 2:6) |
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 ATP - French Open | ||||
| 11.06.2023 | Final | Djokovic Novak — Ruud Casper | 3:0 (7:6, 6:3, 7:5) |
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| 09.06.2023 | Semi-finals | Ruud Casper — Zverev Alexander | 3:0 (6:3, 6:4, 6:0) |
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| 07.06.2023 | Quarter-finals | Rune Holger — Ruud Casper | 1:3 (1:6, 2:6, 6:3, 3:6) |
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| 05.06.2023 | 4th Round | Jarry Nicolas — Ruud Casper | 0:3 (6:7, 5:7, 5:7) |
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| 03.06.2023 | Third round | Zhang Zhizhen — Ruud Casper | 1:3 (6:4, 4:6, 1:6, 4:6) |
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| 01.06.2023 | Second round | Zeppieri Giulio — Ruud Casper | 1:3 (3:6, 2:6, 6:4, 5:7) |
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| 30.05.2023 | First round | Ymer Elias — Ruud Casper | 0:3 (4:6, 3:6, 2:6) |
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