| 15‑Nov‑2021 | Pau CH | Hard | R32 | 954 | 119 | (5)Norbert Gombos [SVK] d. (WC)Debru | 6-4 6-1 | | 0.68 | 1.9% | 5.8% | 67.3% | 57.1% | 41.2% | 6/9 | 1:10 |
| 8‑Nov‑2021 | Roanne CH | Hard | R16 | | 184 | (9)Hugo Grenier [FRA] d. (Q)Debru | 6-2 6-3 | | 0.48 | 1.7% | 5.1% | 50.8% | 53.3% | 44.8% | 4/9 | 1:09 |
| 8‑Nov‑2021 | Roanne CH | Hard | R32 | | 220 | (Q)Debru d. Andrea Pellegrino [ITA] | 4-6 6-2 6-3 | | 0.84 | 0.0% | 2.4% | 55.4% | 69.6% | 43.2% | 5/9 | 1:40 |
| 8‑Nov‑2021 | Roanne CH | Hard | Q2 | | 416 | (WC)Debru d. Vladyslav Orlov [UKR] | 6-3 6-4 | | | | | | | | | |
| 8‑Nov‑2021 | Roanne CH | Hard | Q1 | | 325 | (WC)Debru d. (1)Filip Cristian Jianu [ROU] | 7-5 4-6 6-3 | | | | | | | | | |
| 12‑Jul‑2021 | M25 Uriage | Clay | R32 | | 488 | (3)Pol Martin Tiffon [ESP] d. (WC)Debru | 6-1 6-1 | | | | | | | | | |
