Alvaro Peiro Serrano defeated Runkai Bai 6-2 6-0 in the M25 Santander 1 qualifying round of 32 on clay.
Peiro Serrano A. took it in straight sets.
Alvaro Peiro Serrano beat Runkai Bai 6-2 6-0. Umpiry, "Alvaro Peiro Serrano vs Runkai Bai — M25 Santander 1 Qualifying Round of 32", https://umpiry.com/match/2025-08-17/bai-vs-serrano-m25-santander-1-q32?utm_source=cite (as of 17 August 2025).