
Istanbul Challenger, 2021, Challenger 125
| Menezes, Joao (Q) | [BRA] | |
| Kirkin, Ergi (WC) | ||
| Kirkin, Ergi (WC) | [TUR] | 62 76(5) |
| Taberner, Carlos | [ESP] | |
| Kovalik, Jozef[7] | ||
| Kovalik, Jozef[7] | [SVK] | 76(4) 60 |
| Bagnis, Facundo[4] | [ARG] | |
| Huesler, Marc-Andrea | ||
| Huesler, Marc-Andrea | [SUI] | 75 62 |
| Nakashima, Brandon | [USA] | |
| Rinderknech, Arthur (Q) | ||
| Rinderknech, Arthur (Q) | [FRA] | 67(7) 61 64 |
| Musetti, Lorenzo[6] | [ITA] | |
| Bonzi, Benjamin | ||
| Bonzi, Benjamin | [FRA] | 61 64 |
| Giustino, Lorenzo | [ITA] | |
| Hoang, Antoine[3] | ||
| Hoang, Antoine[3] | [FRA] | 64 64 |
| Soeda, Go[8] | [JPN] | |
| Soeda, Go[8] | ||
| Griekspoor, Tallon | [NED] | 75 46 76(2) |
| Gaio, Federico | [ITA] | |
| Safwat, Mohamed | ||
| Safwat, Mohamed | [EGY] | 76(4) 75 |
| Kirkin, Ergi (WC) | [TUR] | |
| Kovalik, Jozef[7] | ||
| Kovalik, Jozef[7] | [SVK] | 67(5) 60 76(3) |
| Huesler, Marc-Andrea | [SUI] | |
| Rinderknech, Arthur (Q) | ||
| Rinderknech, Arthur (Q) | [FRA] | 75 63 |
| Bonzi, Benjamin | [FRA] | |
| Bonzi, Benjamin | ||
| Hoang, Antoine[3] | [FRA] | 67(5) 61 75 |
| Soeda, Go[8] | [JPN] | |
| Safwat, Mohamed | ||
| Safwat, Mohamed | [EGY] | w/o |
| Kovalik, Jozef[7] | [SVK] | |
| Rinderknech, Arthur (Q) | ||
| Rinderknech, Arthur (Q) | [FRA] | 75 64 |
| Bonzi, Benjamin | [FRA] | |
| Bonzi, Benjamin | ||
| Safwat, Mohamed | [EGY] | 76(1) 64 |
| Rinderknech, Arthur (Q) | [FRA] | |
| Rinderknech, Arthur (Q) | ||
| Bonzi, Benjamin | [FRA] | 46 76(1) 76(3) |








