Shuichi Sekiguchi defeated Harry Bourchier 6-4 6-4 in the M25 Nonthaburi 1 semi-final on hard. The result followed the form book — Shuichi Sekiguchi came in leading the head-to-head 1–0. Shuichi Sekiguchi extended the head-to-head to 2–0.
Sekiguchi S. took it in straight sets.
Shuichi Sekiguchi beat Harry Bourchier 6-4 6-4. Umpiry, "Shuichi Sekiguchi vs Harry Bourchier — M25 Nonthaburi 1 Semi-final", https://umpiry.com/match/2019-05-25/bourchier-vs-sekiguchi-m25-nonthaburi-1-sf?utm_source=cite (as of 25 May 2019).