Ryan Nijboer defeated Sergio Callejon Hernando 6-2 4-6 6-2 in the M25 Mungia-Laukariz 1 round of 16 on clay. Ryan Nijboer extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2023-08-23 | M25 Santander 1 | R16 | clay | Ryan Nijboer | 6-1 7-6(0) |
| 2023-08-04 | M15 Xativa 1 | QF | clay | Ryan Nijboer | 6-2 6-3 |
Averages over each player's completed matches in the selected window (178 vs 111). ATP, WTA & Challenger.
Nijboer R.: 6 days rest · 2 matches, 32 games (7d). Higher means fresher. About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About