Arata Onozawa defeated Bei Liu 6-2 6-1 in the China F8 round of 32 on hard.
Onozawa A. took it in straight sets.
Arata Onozawa beat Bei Liu 6-2 6-1. Umpiry, "Arata Onozawa vs Bei Liu — China F8 Round of 32", https://umpiry.com/match/2012-05-21/liu-vs-onozawa-china-f8-r32?utm_source=cite (as of 21 May 2012).