Andrey Rublev defeated Brandon Nakashima 6-2 6-1 in the San Diego round of 16 on hard. The upset overturned the form book — Brandon Nakashima came in ranked #18.
Rublev A. took it in straight sets.
Rublev A. and Nakashima B. faced 1 of the same opponent in the last 12 months. Rublev A. went 0–2 (0%) against them, Nakashima B. 1–0 (100%).
Only 1 common opponent — too few for any conclusion. Shown without assessment.
Andrey Rublev beat Brandon Nakashima 6-2 6-1. Umpiry, "Andrey Rublev vs Brandon Nakashima — San Diego Round of 16", https://umpiry.com/match/2021-09-27/nakashima-vs-rublev-san-diego-r16?utm_source=cite (as of 27 September 2021).