| Wimbledon | 06/28 16:10 | 23 | [188] Alexander Ritschard v Stefanos Tsitsipas [5] | 6-7,3-6,7-5,4-6 | |
| Wimbledon | 06/23 10:00 | 19 | [236] Duje Ajdukovic v Alexander Ritschard [192] | 3-6,5-7,4-6 | |
| Wimbledon | 06/22 10:00 | 19 | [192] Alexander Ritschard v Nicolas Kicker [223] | 6-3,6-2 | |
| Wimbledon | 06/20 12:25 | 14 | [192] Alexander Ritschard v Stuart Parker [499] | 4-6,6-1,6-2 | |
| Challenger Ilkley | 06/12 13:25 | 14 | [204] Alexander Ritschard v Lukas Lacko [242] | 3-6,2-6 | |
| Challenger Lyon | 06/07 15:45 | 25 | [204] Alexander Ritschard v Corentin Moutet [128] | 2-6,6-7 | |
| Challenger Troisdorf | 05/25 12:40 | 26 | [260] Jelle Sels v Alexander Ritschard [202] | 6-3,6-4 | |
| Challenger Troisdorf | 05/24 09:35 | 25 | [202] Alexander Ritschard v Marcelo Tomas Barrios Vera [138] | 7-5,7-6 | |
| French Open | 05/20 13:35 | 19 | [204] Alexander Ritschard v Camilo Ugo Carabelli [154] | 6-7,2-6 | |
| French Open | 05/18 14:50 | 15 | [109] Fernando Verdasco v Alexander Ritschard [204] | 2-6,6-3,3-6 | |
| French Open | 05/17 12:50 | 14 | [204] Alexander Ritschard v Laurent Lokoli [279] | 2-6,6-4,6-4 | |
| Challenger Heilbronn | 05/12 10:00 | 27 | [213] Alexander Ritschard v Jonas Forejtek [259] | 7-5,3-6,3-6 |