Madison Brengle defeated Markéta Vondroušová 6–4, 6–4 in the first round of Wimbledon 2019 on grass, delivering a significant upset against the pre-match favourite. Vondroušová, seeded and heavily favoured at 1.15 odds, was unable to impose her game on the surface, whilst Brengle, a 6.2 outsider, capitalised on her opponent's struggles to secure a commanding two-set victory. The American's composed performance on grass proved decisive in dismantling the Czech teenager's challenge in straight sets. The result represents a notable early-round exit for Vondroušová and demonstrates Brengle's capability to compete against higher-ranked opposition on the grass courts of the All England Club.