Lulu Sun upset Qinwen Zheng 4–6, 6–2, 6–4 in the first round of Wimbledon on grass on 1 July 2024, defying pre-match odds that favoured the Chinese player at 1.19 to Sun's 5.21. Sun recovered from losing the opening set to dominate the middle stages, breaking Zheng's rhythm with improved court positioning and consistency. The New Zealand player's grass-court adaptability proved decisive as she seized control in the second set and maintained her advantage through a tightly contested third, converting her opportunities when it mattered. The upset victory marks a significant scalp for Sun at the All England Club and demonstrates her capability against higher-ranked opposition on the surface.