Ranked world No. 88 on the WTA Tour, Lulu Sun represents NZL as a professional tennis player. She competes as a left-handed player. She has reached a career-high of No. 39. She turned professional in 2015.
Lulu Sun faced difficulties in 2025. Competing on hard: 10-15. She held firm saving 59% of breakpoints faced, stayed solid at 47% on second serves, and fired 0.5 aces per service game.
Lulu Sun reached the final at Monterrey and one quarterfinal at Wimbledon in 2024. She broke into the top 50. Hard results: 7-7. She recorded a win over a top-10 opponent. She maintained pressure winning 50% on second serve delivery, delivered 0.5 free points per game through aces, and defended brilliantly at 67% break points saved. At lower-tier events, she won two titles at W50 Roehampton and W100 Bonita Springs FL. At lower-tier events: 15-7. Results on clay: 9-3. She won 57% on first serve, won 39% on first serve return, and won 59% serve pressure points.
Sun developed through Challenger events in 2023. A maiden top-200 ranking followed. She captured one title at W80 Brasilia. She also reached finals at W25 Boca Raton FL and W60 Rancho Santa Fe CA. Additional semifinals at W60 Rome GA and W25 Pretoria. Record: 39-20. Competing on hard: 35-16. She won 60% on first serve, converted 55% of break opportunities, and won 39% on first serve return.
The NZL player gained ranking points at Futures level in 2022. She reached three quarterfinals at W25 Nanao, W25 Corroios-Seixal, and W25 Santa Margherita di Pula. Season record: 24-20. Surface breakdown: clay 7-5, hard 11-11. She won 50% on second serve, won 34% on first serve return, and saved 44% of break points.
Lulu Sun competed at Futures/ITF level in 2021. She captured one title at W25 Lisbon. She also reached the final at W25 Palma del Rio. Record: 26-13. By surface: clay 7-4, hard 19-9. She won 45% on second serve, won 58% on first serve, and won 49% on second serve return.
A tough 2020 season for Sun. She captured one title at W15 Monastir. She also reached the final at W15 Sharm El Sheikh. Season record: 25-11. Results on hard: 24-9.
The NZL player delivered an impressive 2019 campaign. She won two titles at W15 Perth and W15 Port Pirie. Record: 18-3. Competing on hard: 13-2.
Lulu Sun competed at Futures/ITF level in 2018. She reached the quarterfinal at Xiamen $15K. Season record: 3-6.
Lulu Sun developed through Futures tournaments in 2017. She reached the final at Nonthaburi $15K. Additional semifinals at Gwalior $15K and Hua Hin $15K. Record: 15-9. Competing on hard: 11-5.
Lulu Sun gained ranking points at Futures level in 2016. Season record: 2-6.
2015 proved challenging for Lulu Sun. Record: 5-7. Competing on hard: 5-7.