Hikaru Sato defeated Mercedes Aristegui 6-3 6-2 in the W25 Papamoa round of 32 on hard. The upset overturned the form book — Mercedes Aristegui came in leading the head-to-head 1–0. Hikaru Sato claimed a first win over Mercedes Aristegui in two meetings, levelling the head-to-head at 1–1.
Sato H. took it in straight sets.
Hikaru Sato beat Mercedes Aristegui 6-3 6-2. Umpiry, "Hikaru Sato vs Mercedes Aristegui — W25 Papamoa Round of 32", https://umpiry.com/match/2023-12-19/aristegui-vs-sato-w25-papamoa-r32?utm_source=cite (as of 19 December 2023).