Alvaro Peiro Serrano defeated Paul Ender 6-7 6-1 10-6 in the M15 Valencia 2 q64 on clay. The upset overturned the form book — Paul Ender came in leading the head-to-head 1–0, but Alvaro Peiro Serrano had been the form player, winning 4 of their last 6 on clay. Alvaro Peiro Serrano claimed a first win over Paul Ender in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2024-03-24 | M25 Tarragona 1 | Q64 | clay | Paul Ender | 6-4 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.