Head to Head
| ITF W60 Rome GA | 2023/02/02 16:00 | Ann Li v Lulu Sun | 4-6,6-3,4-6 |
Home History
| WTA Charleston | 2024/03/31 19:35 | Katie Volynets v Ann Li | 2-6,6-1,6-2 |
| WTA Charleston | 2024/03/30 21:10 | Robin Anderson v Ann Li | 6-7,0-6 |
| WTA San Diego | 2024/02/27 04:05 | Ann Li v Marta Kostyuk | 4-6,6-4,2-6 |
| WTA San Diego | 2024/02/25 19:00 | Kayla Day v Ann Li | 3-6,0-6 |
| WTA San Diego | 2024/02/24 21:05 | Alyssa Ahn v Ann Li | 5-7,5-7 |
| ITF W50 Morelia | 2024/02/13 23:00 | Ann Li v Irene Burillo Escorihuela | 4-6,6-1,3-6 |
| ITF W100 Irapuato | 2024/02/06 19:00 | Adriana Reami v Ann Li | 6-2,6-1 |
| ITF W75 Rome (GA) | 2024/01/31 19:05 | Ann Li v Elizabeth Ionescu | 0-6,3-6 |
Away History
| Billie Jean King Cup | 2024/04/11 03:15 | Xiyu Wang v Lulu Sun | 6-4,6-0 |
| Billie Jean King Cup | 2024/04/09 03:55 | Su Jeong Jang v Lulu Sun | 6-4,6-0 |
| ITF W75 Ricany | 2024/03/14 11:05 | Anastasia Tikhonova v Lulu Sun | 6-2,4-6,6-4 |
| ITF W75 Ricany | 2024/03/13 15:50 | Talia Gibson v Lulu Sun | 4-6,5-7 |
| ITF W75 Trnava | 2024/03/04 09:00 | Lulu Sun v Lucie Havlickova | 6-2,3-6,6-7 |
| ITF W50 Trnava | 2024/02/27 14:00 | Zeynep Sonmez v Lulu Sun | 0-6,6-4,6-3 |
| WTA Dubai | 2024/02/20 11:05 | Jelena Ostapenko v Lulu Sun | 6-4,6-3 |
| ITF W50 Roehampton | 2024/02/18 10:30 | Lulu Sun v Heather Watson | 7-5,7-5 |