Overview

• She defeated Ajla Tomljanovic 6-4, 6-7 (2), 7-5 despite 10 double faults and six lost service games.
• The match showcased early tweaks from new consultant Gavin MacMillan, who previously helped Aryna Sabalenka repair a faltering serve.
• Gauff described the rapid overhaul as mentally exhausting after heavy serving sessions that left her shoulder hurting.
• She intentionally lowered first‑serve pace early — averaging 88 mph in the first set before reaching 101 mph in the third — to stay committed to the new motion.
• She tops the tour with 300-plus double faults this season, with 320 recorded in 47 matches before the US Open, and next faces Donna Vekic as analysts frame the changes as progress that will need time.