Yuxuan Bu of China enters the Busan quarter-finals as the 175th-ranked player, holding a commanding 2–0 head-to-head record against opponent Amanda Walton. Bu has shown strong form in the tournament, winning four of her last five matches including straight-set victories over Sharipov, Chung, and Wiskandt, though she suffered a loss to Galarneau in her most recent setback. The hard court at Busan appears to suit Bu's game, and her recent run of success positions her as a threat in this quarter-final clash.

Amanda Walton of Australia arrives at the Busan quarter-finals ranked 109th in the world, seeking to overturn a 0–2 deficit in head-to-head meetings with Bu. Walton's recent form has been inconsistent, with three losses in her last five matches including a straight-set defeat to Bu earlier in this tournament, though she did secure victories over Trotter and Hsu in tight encounters. The Australian will need to find the consistency that eluded her in their previous meetings to advance from this quarter-final stage.