Rina Saigo defeated Sohyun Park 2-6 5-0 in the W100 Takasaki round of 16 on hard. The upset overturned the form book — Sohyun Park came in leading the head-to-head 4–0, defending last year's round of 32. Rina Saigo claimed a first win over Sohyun Park in five meetings, narrowing the head-to-head to 4–1.
Saigo R. won the match.
Rina Saigo beat Sohyun Park 2-6 5-0. Umpiry, "Rina Saigo vs Sohyun Park — W100 Takasaki Round of 16", https://umpiry.com/match/2026-05-18/park-vs-saigo-w100-takasaki-r16?utm_source=cite (as of 18 May 2026).