K. Kawa leads the all-time head-to-head 3-2 against S. Waltert, over 5 matches.
| Surface | S. Waltert | K. Kawa |
|---|---|---|
| Clay | 2 | 2 |
| Hard | 0 | 1 |
| Date | Winner | Score | Event |
|---|---|---|---|
| July 14, 2026 | K. Kawa | 2 - 0 | Iasi · 1/16-finals · clay |
| July 6, 2026 | S. Waltert | 2 - 0 | Bastad · 1/16-finals · clay |
| April 14, 2026 | S. Waltert | 0 - 2 | Oeiras · 1/16-finals · clay |
| Feb. 4, 2020 | K. Kawa | 0 - 2 | W25 Nonthaburi 2 · 1/16-finals · hard |
| Oct. 17, 2019 | K. Kawa | 0 - 2 | Szekesfehervar · 1/8-finals · clay |