Sho Shimabukuro defeated Jan Choinski 6-3 6-3 in the US Open qualifying round of 128 on hard. The upset overturned the form book — Jan Choinski came in ranked #91.
Shimabukuro S. took it in straight sets.
Sho Shimabukuro beat Jan Choinski 6-3 6-3. Umpiry, "Sho Shimabukuro vs Jan Choinski — US Open Qualifying Round of 128", https://umpiry.com/match/2023-08-23/choinski-vs-shimabukuro-us-open-q128?utm_source=cite (as of 23 August 2023).