2nd Serve Points Won
| Player | Matches | Percentage | Points | Out Of | |
| 1 | U. Humbert | 4 | 65.42% | 70 | 107 |
| 2 | A. de Minaur | 5 | 63.30% | 69 | 109 |
| 3 | A. Popyrin | 1 | 61.11% | 11 | 18 |
| 4 | T. Griekspoor | 3 | 60.61% | 40 | 66 |
| 5 | Z. Bergs | 1 | 59.57% | 28 | 47 |
| 6 | J. Munar | 3 | 59.43% | 63 | 106 |
| 7 | K. Khachanov | 2 | 59.15% | 42 | 71 |
| 8 | M. Fucsovics | 1 | 55.56% | 15 | 27 |
| 9 | G. Den Ouden | 2 | 54.84% | 34 | 62 |
| 10 | S. Tsitsipas | 2 | 54.72% | 29 | 53 |