| 2026-09-30 | Kinoshita Group Japan Open Tennis Championships | R16 | Marc Polmans / Jan Zielinski (と Patrik Rikl) | 6-2 2-6 9-11 | 敗 |
| 2026-09-23 | Chengdu Open | F | Robert Galloway / André Göransson (と Jan Zielinski) | 7-6 7-5 | 勝 |
| 2026-09-23 | Chengdu Open | SF | Jakob Schnaitter / Mark Wallner (と Jan Zielinski) | 6-3 6-2 | 勝 |
| 2026-09-23 | Chengdu Open | QF | John Peers / Michael Venus (と Jan Zielinski) | 2-6 6-3 10-7 | 勝 |
| 2026-09-23 | Chengdu Open | R16 | Sadio Doumbia / Fabien Reboul (と Jan Zielinski) | 4-6 6-4 10-3 | 勝 |
| 2026-08-30 | US Open | R64 | Marcelo Arévalo / Mate Pavic (と Jan Zielinski) | 4-6 6-1 6-7 | 敗 |
| 2026-08-23 | Winston-Salem Open | R16 | Lucas Miedler / Marc Polmans (と Jan Zielinski) | 6-4 3-6 7-10 | 敗 |
| 2026-08-13 | Cincinnati Open | R32 | Hugo Nys / Édouard Roger-Vasselin (と Jan Zielinski) | 6-3 4-6 3-10 | 敗 |
| 2026-07-27 | Internazionali di Tennis San Marino Open | QF | Piotr Matuszewski / Filip Pieczonka (と Bart Stevens) | 4-6 4-6 | 敗 |
| 2026-07-27 | Internazionali di Tennis San Marino Open | R16 | Siddhant Banthia / Alexander Donski (と Bart Stevens) | 3-6 6-2 10-7 | 勝 |
| 2026-07-20 | Millennium Estoril Open | R16 | Titouan Droguet / Kyrian Jacquet (と Jan Zielinski) | 6-7 1-6 | 敗 |
| 2026-07-13 | Nordea Open | R16 | Andrea Pellegrino / Andrea Vavassori (と Jan Zielinski) | 7-6 1-6 8-10 | 敗 |
| 2026-06-29 | Wimbledon | R64 | Jakub Paul / Ryan Seggerman (と Jan Zielinski) | 4-6 4-6 | 敗 |
| 2026-06-22 | Lexus Eastbourne Open | SF | Hugo Nys / Édouard Roger-Vasselin (と Jan Zielinski) | 4-6 2-6 | 敗 |
| 2026-06-22 | Lexus Eastbourne Open | QF | Juan Manuel Cerundolo / Camilo Ugo Carabelli (と Jan Zielinski) | | 勝 |
| 2026-06-22 | Lexus Eastbourne Open | R16 | Ben Jones / Joshua Paris (と Jan Zielinski) | 6-7 6-3 10-5 | 勝 |
| 2026-06-15 | HSBC Championships | R16 | Jiří Lehečka / Jakub Mensik (と Jan Zielinski) | 3-6 6-3 12-10 | 勝 |
| 2026-06-15 | HSBC Championships | QF | Christian Harrison / Neal Skupski (と Jan Zielinski) | 4-6 4-6 | 敗 |
| 2026-04-22 | Mutua Madrid Open | SF | Harri Heliovaara / Henry Patten (と Jan Zielinski) | 3-6 3-4 | 敗 |
| 2026-04-22 | Mutua Madrid Open | QF | Sadio Doumbia / Fabien Reboul (と Jan Zielinski) | 4-6 6-3 10-6 | 勝 |
| 2026-04-22 | Mutua Madrid Open | R16 | Tallon Griekspoor / Brandon Nakashima (と Jan Zielinski) | 6-2 4-6 10-3 | 勝 |
| 2026-04-22 | Mutua Madrid Open | R32 | Robert Galloway / Santiago Gonzalez (と Jan Zielinski) | 6-3 6-3 | 勝 |
| 2026-04-13 | BMW Open by Bitpanda | QF | Orlando Luz / Rafael Matos (と Jan Zielinski) | 4-6 4-6 | 敗 |
| 2026-04-13 | BMW Open by Bitpanda | R16 | Alexander Erler / Lucas Miedler (と Jan Zielinski) | 6-4 6-7 10-6 | 勝 |
| 2026-04-05 | Rolex Monte-Carlo Masters | R32 | Marcelo Melo / Alexander Zverev (と Jan Zielinski) | 3-6 3-6 | 敗 |
| 2026-03-30 | Grand Prix Hassan II | R16 | Vasil Kirkov / Bart Stevens (と Jan Zielinski) | 4-6 5-7 | 敗 |
| 2026-03-18 | Miami Open presented by Itau | R32 | Théo Arribagé / Albano Olivetti (と Jan Zielinski) | 4-6 6-7 | 敗 |
| 2026-03-10 | Arizona Tennis Classic | SF | Diego Hidalgo / Patrik Trhac (と Jan Zielinski) | 5-7 4-6 | 敗 |
| 2026-03-10 | Arizona Tennis Classic | QF | Nicolas Barrientos / Benjamin Kittay (と Jan Zielinski) | 6-4 2-6 10-6 | 勝 |
| 2026-03-10 | Arizona Tennis Classic | R16 | Charles Barry / Andres Martin (と Jan Zielinski) | 7-6 6-2 | 勝 |