| Challenger Split | 04/08 08:00 | 19 | [326] Felix Gill v Robert Strombachs [386] | 6-1,4-6,6-3 | |
| Challenger Split | 04/07 12:00 | 14 | Duje Markovina v Robert Strombachs | 2-6,2-6 | |
| Challenger Barcelona | 03/31 11:00 | 14 | [375] Robert Strombachs v Ryan Nijboer [483] | 3-6,0-6 | |
| Challenger Pau | 02/19 13:05 | 19 | [424] James Trotter v Robert Strombachs [342] | 6-4,7-5 | |
| Challenger Pau | 02/18 15:15 | 14 | [384] Alexis Gautier v Robert Strombachs [342] | 3-6,3-6 | |
| Challenger Glasgow | 02/15 10:00 | - | Hamish Stewart v Robert Strombachs | 1-6,7-5,6-1 | |
| Challenger Glasgow | 02/14 14:40 | 26 | Hamish Stewart v Robert Strombachs | 1-6,7-5,6-1 | |
| Challenger Glasgow | 02/12 14:00 | 25 | [342] Robert Strombachs v Anton Matusevich [468] | 7-6,6-1 | |
| Davis Kupa | 02/03 14:05 | 4 | Casper Ruud v Robert Strombachs | CANC | |
| Davis Kupa | 02/02 17:10 | 1 | [413] Viktor Durasovic v Robert Strombachs [346] | 7-5,6-2 | |
| ITF M25 Nussloch | 01/26 18:00 | 27 | [344] Robert Strombachs v Alastair Gray [492] | 7-5,5-7,4-6 | |
| ITF M25 Nussloch | 01/25 13:20 | 26 | Robert Strombachs v Patrick Zahraj | 6-3,6-3 |
Robert Strombachs (Latvian: Roberts Štrombahs; born 15 September 1999) is a Latvian-German tennis player.
Strombachs has a career high ATP singles ranking of world No. 338, achieved on 27 November 2023. He also has a career high ATP doubles ranking of No. 383, achieved on 19 August 2019.
Strombachs represents Latvia at the Davis Cup, where he has a W/L record of 7–6.