Shintaro Mochizuki defeated Alexei Popyrin 7-5 2-6 7-5 in the Tokyo quarter-final on hard. The upset overturned the form book — Alexei Popyrin came in ranked #61, defending last year's round of 32.
The Umpiry Score combines match-context factors — matchup, form, fatigue, travel and motivation — into a single 0–10 score, updated daily. Read how it works.
No previous meetings on record.
Averages from each player's recent completed matches (20 vs 20). ATP, WTA & Challenger.