| Challenger de Eckental | 10/28 14:10 | 24 | [246] Viktor Galovic v Zdenek Kolar [267] | 2-6,2-6 | |
| Challenger de Orleans | 09/23 11:15 | 24 | [220] Cedrik-Marcel Stebe v Viktor Galovic [247] | Retired | |
| Challenger de Biella | 09/18 09:25 | 25 | [243] Viktor Galovic v Federico Gaio [154] | 4-6,4-6 | |
| Challenger de Biella | 09/16 12:35 | 24 | [312] Daniel Gimeno-Traver v Viktor Galovic [244] | 3-6,5-7 | |
| Challenger de Sevilla | 09/12 18:05 | 26 | [244] Viktor Galovic v Salvatore Caruso [120] | 4-6,6-7 | |
| Challenger de Sevilla | 09/10 18:05 | 25 | [244] Viktor Galovic v Maxime Chazal [424] | 6-4,6-4 | |
| Challenger de Génova | 09/03 13:25 | 25 | [224] Viktor Galovic v Alejandro Davidovich Fokina [126] | 0-6,4-6 | |
| Challenger de Génova | 09/02 11:25 | 24 | [150] Alessandro Giannessi v Viktor Galovic [224] | Retired | |
| Challenger de Como | 08/29 16:25 | 26 | [81] Stefano Travaglia v Viktor Galovic [224] | 7-6,5-7,7-6 | |
| Challenger de Como | 08/27 12:15 | 25 | [274] Raul Brancaccio v Viktor Galovic [224] | 1-6,5-7 | |
| US Open | 08/22 17:00 | 45 | [223] Viktor Galovic v Jannik Sinner [131] | 6-4,6-7,5-7 | |
| US Open | 08/20 20:45 | 44 | [239] John-Patrick Smith v Viktor Galovic [223] | 6-7,4-6 | |
| Challenger Manerbio | 08/06 09:45 | 25 | [307] Sadio Doumbia v Viktor Galovic [222] | 6-1,6-2 | |
| ATP Kitzbuhel | 07/27 09:00 | 64 | Sandro Kopp v Viktor Galovic | 7-6,4-6,7-6 | |
| ATP Gstaad | 07/21 10:25 | 164 | [121] Dennis Novak v Viktor Galovic [197] | 6-3,6-3 | |
| ATP Gstaad | 07/20 11:20 | 64 | [197] Viktor Galovic v Stefano Napolitano [178] | 6-3,6-4 | |
| ATP Umag | 07/16 16:45 | 25 | [207] Attila Balazs v Viktor Galovic [197] | 6-0,6-7,7-6 | |
| Challenger de Perugia | 07/08 10:30 | 24 | [196] Viktor Galovic v Rogerio Dutra Silva [233] | 4-6,4-6 | |
| Challenger de Recanati | 07/05 19:05 | 27 | [207] Lukas Lacko v Viktor Galovic [196] | 7-5,6-3 | |
| Challenger de Recanati | 07/04 17:00 | 26 | [196] Viktor Galovic v Sergiy Stakhovsky [136] | 5-7,6-3,6-3 | |
| Challenger de Recanati | 07/03 10:30 | 25 | [196] Viktor Galovic v Pavel Kotov [275] | 7-6,6-4 | |
| Wimbledon | 06/27 10:00 | 25 | [158] Marcos Giron v Viktor Galovic [199] | 7-5,6-2,2-6,6-4 | |
| Wimbledon | 06/26 12:25 | 45 | [147] James Duckworth v Viktor Galovic [199] | 6-3,3-6,9-11 | |
| Wimbledon | 06/24 12:20 | 44 | [199] Viktor Galovic v Facundo Bagnis [164] | 7-6,7-6 | |
| Challenger de Ilkley | 06/18 14:20 | 24 | [169] Go Soeda v Viktor Galovic [198] | 7-6,7-6 | |
| Challenger de Ilkley | 06/17 11:00 | 166 | Viktor Galovic v Andrew Watson | 6-4,6-4 | |
| ATP Stuttgart | 06/11 12:25 | 25 | [84] Denis Kudla v Viktor Galovic [205] | 6-3,6-2 | |
| ATP Stuttgart | 06/09 09:00 | 164 | [194] Viktor Galovic v Sergiy Stakhovsky [111] | 6-4,2-6,6-4 | |
| ATP Stuttgart | 06/08 09:00 | 64 | [106] Brayden Schnur v Viktor Galovic [194] | 6-4,3-6,4-6 | |
| Challenger de Vicenza | 05/30 11:55 | 25 | [482] Francesco Forti v Viktor Galovic [194] | 6-3,6-3 |