Shintaro Mochizuki defeated Roman Andres Burruchaga 6-3 6-2 in the US Open qualifying round of 64 on hard. The upset overturned the form book — Roman Andres Burruchaga came in ranked #56, but Shintaro Mochizuki had been the form player, winning 2 of their last 4 on hard.
Mochizuki S. took it in straight sets.
Mochizuki S. and Burruchaga R. faced 1 of the same opponent in the last 12 months. Mochizuki S. went 2–0 (100%) against them, Burruchaga R. 2–0 (100%).
Only 1 common opponent — too few for any conclusion. Shown without assessment.