E. Mertens leads the head-to-head 4-1 since 2018 against G. Ruse, over 5 matches.
| Surface | E. Mertens | G. Ruse |
|---|---|---|
| Grass | 1 | 1 |
| Hard | 2 | 0 |
| Clay | 1 | 0 |
| Date | Winner | Score | Event |
|---|---|---|---|
| June 11, 2026 | G. Ruse | 2 - 0 | Hertogenbosch · 1/8-finals · grass |
| June 15, 2025 | E. Mertens | 2 - 0 | Hertogenbosch · Final · grass |
| March 3, 2023 | E. Mertens | 2 - 1 | WTA Monterrey · 1/8-finals · hard |
| Feb. 13, 2023 | E. Mertens | 2 - 1 | Doha · Final · hard |
| May 22, 2022 | E. Mertens | 2 - 0 | French Open · 1/64-finals · clay |