Boy Westerhof defeated Young Seok Kim 6-2 6-4 in the China F3 round of 32 on clay. The upset overturned the form book — Young Seok Kim came in leading the head-to-head 1–0. Boy Westerhof claimed a first win over Young Seok Kim in two meetings, levelling the head-to-head at 1–1.
Westerhof B. took it in straight sets.
Boy Westerhof beat Young Seok Kim 6-2 6-4. Umpiry, "Boy Westerhof vs Young Seok Kim — China F3 Round of 32", https://umpiry.com/match/2015-04-13/kim-vs-westerhof-china-f3-r32?utm_source=cite (as of 13 April 2015).