Patrick Kypson defeated Rinky Hijikata 6-4 6-4 in the Sioux Falls CH quarter-final on hard. The upset overturned the form book — Rinky Hijikata came in ranked #85, leading the head-to-head 1–0. Patrick Kypson claimed a first win over Rinky Hijikata in two meetings, levelling the head-to-head at 1–1.
Kypson P. took it in straight sets.
Kypson P. and Hijikata R. faced 1 of the same opponent in the last 12 months. Kypson P. went 0–1 (0%) against them, Hijikata R. 0–1 (0%).
Only 1 common opponent — too few for any conclusion. Shown without assessment.
Patrick Kypson beat Rinky Hijikata 6-4 6-4. Umpiry, "Patrick Kypson vs Rinky Hijikata — Sioux Falls CH Quarter-final", https://umpiry.com/match/2025-10-20/hijikata-vs-kypson-sioux-falls-ch-qf?utm_source=cite (as of 20 October 2025).