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Ann Li (Chinese: 李吉妮; born June 26, 2000) is an American tennis player. She has a career-high singles WTA singles ranking of world No. 33 and a doubles ranking of No. 149, both achieved on 27 October 2025. Li has won two singles titles on the WTA Tour and three titles on the ITF Women's Circuit. Li was a finalist at the 2017 Wimbledon girls' singles final.
| W | F | SF | QF | | RR | Q# | DNQ | A | NH |
| Tournament | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | SR | W–L | Win % |
| Grand Slam tournaments | ||||||||||||
| Australian Open | A | A | A | 2R | 3R | 1R | Q2 | Q2 | 1R | 0 / 4 | 3–4 | 43% |
| French Open | A | A | A | Q2 | 2R | 1R | A | Q1 | 2R | 0 / 3 | 2–3 | 33% |
| Wimbledon | A | A | Q1 | NH | 1R | 2R | Q2 | Q1 | 2R | 0 /3 | 2–3 | 33% |
| US Open | Q1 | Q1 | Q2 | 3R | 1R | 1R | Q2 | 1R | 4R | 0 / 5 | 5–5 | 50% |
| Win–loss | 0–0 | 0–0 | 0–0 | 3–2 | 3–4 | 1–4 | 0–0 | 0–1 | 5–4 | 0 / 15 | 12–15 | 44% |
| WTA 1000 | ||||||||||||
| Dubai / Qatar Open | A | A | A | A | A | 2R | A | A | Q1 | 0 / 1 | 1–1 | 50% |
| Indian Wells Open | A | Q1 | A | NH | 1R | 2R | 1R | A | 1R | 0 / 4 | 1–4 | 20% |
| Miami Open | A | Q1 | A | NH | A | 3R | A | A | 1R | 0 / 2 | 2–2 | 50% |
| Madrid Open | A | A | A | NH | A | A | A | A | 3R | 0 / 1 | 2–1 | 67% |
| Italian Open | A | A | A | NH | A | A | A | A | 0 / 0 | 0–0 | – | |
| Canadian Open | A | A | A | NH | Q2 | A | A | A | 0 / 0 | 0–0 | – | |
| Cincinnati Open | A | A | A | 1R | A | A | 2R | A | 0 / 2 | 1–2 | 33% | |
| Guadalajara Open | NH | 1R | 1R | NMS | 0 / 2 | 0–2 | 0% | |||||
| Career statistics | ||||||||||||
| Tournaments | 0 | 0 | 0 | 4 | 12 | 16 | 4 | 5 | 8 | Career total: 49 | ||
| Titles | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | Career total: 1 | ||
| Finals | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 1 | 1 | Career total: 4 | ||
| Overall win–loss | 0–0 | 0–0 | 0–0 | 3–4 | 19–10 | 10–16 | 1–4 | 7–5 | 9–8 | 1 / 49 | 49–47 | 51% |
| Year-end ranking | 583 | 310 | 148 | 97 | 47 | 140 | 174 | 99 | $1,487,858 | |||
| Legend |
| Grand Slam |
| WTA 1000 |
| WTA 500 |
| WTA 250 (2–3) |
| Finals by surface |
| Hard (2–3) |
| Clay (0–0) |
| Grass (0–0) |
| Finals by setting |
| Outdoor (2–2) |
| Indoor (0–1) |
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
| Finalist | NP | Feb 2021 | Grampians Trophy, Australia | WTA 500 | Hard | Anett Kontaveit | cancelled |
| Win | 1–0 | Oct 2021 | Tenerife Ladies Open, Spain | WTA 250 | Hard | Camila Osorio | 6–1, 6–4 |
| Loss | 1–1 | Oct 2024 | Mérida Open, Mexico | WTA 250 | Hard | Zeynep Sönmez | 2–6, 1–6 |
| Loss | 1–2 | Feb 2025 | Singapore Open, Singapore | WTA 250 | Hard (i) | Elise Mertens | 1–6, 4–6 |
| Loss | 1–3 | Aug 2025 | Tennis in Cleveland, US | WTA 250 | Hard | Sorana Cîrstea | 1–6, 4–6 |
| Win | 2–3 | Oct 2025 | Guangzhou Open, China | WTA 250 | Hard | Lulu Sun | 7–6(8–6), 6–2 |
| Result | W–L | Date | Tournament | Surface | Opponent | Score |
| Win | 1–0 | Jun 2024 | Internacional de Valencia, Spain | Clay | Viktoriya Tomova | 6–3, 6–4 |
| Loss | 1–1 | Jul 2024 | Båstad Open, Sweden | Clay | Martina Trevisan | 2–6, 2–6 |
| Legend |
| W100 tournaments (0–3) |
| W80 tournaments (1–0) |
| W60 tournaments (0–3) |
| W25 tournaments (1–1) |
| W15 tournaments (1–0) |
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
| Win | 1–0 | Jul 2017 | ITF Evansville, United States | W15 | Hard | Marcela Zacarías | 4–6, 6–4, 6–3 |
| Loss | 1–1 | Aug 2018 | Lexington Challenger, United States | W60 | Hard | Asia Muhammad | 5–7, 1–6 |
| Loss | 1–2 | Apr 2019 | ITF Jackson, United States | W25 | Clay | Katarzyna Kawa | 3–6, 2–6 |
| Win | 2–2 | Apr 2019 | Osprey Challenger, United States | W25 | Clay | Usue Maitane Arconada | 6–3, 7–5 |
| Loss | 2–3 | May 2019 | Bonita Springs Championship, US | W100 | Clay | Lauren Davis | 5–7, 5–7 |
| Loss | 2–4 | Aug 2019 | Lexington Challenger, US | W60 | Hard | Kim Da-bin | 1–6, 3–6 |
| Loss | 2–5 | Aug 2019 | Concord Tennis Open, US | W60 | Hard | Caroline Dolehide | 3–6, 5–7 |
| Win | 3–5 | Oct 2020 | Tyler Pro Challenge, US | W80 | Hard | Marta Kostyuk | 7–5, 1–6, 6–3 |
| Loss | 3–6 | May 2023 | Bonita Springs Championship, US | W100 | Clay | Kayla Day | 2–6, 2–6 |
| Loss | 3–7 | Oct 2024 | Tennis Classic of Macon, US | W100 | Hard | Anna Blinkova | 6–2, 2–6, 6–7(4) |
| Legend |
| W100 tournaments (0–2) |
| W60 tournaments (0–1) |
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
| Loss | 0–1 | Feb 2019 | Midland Tennis Classic, United States | W100 | Hard (i) | Coco Gauff | Olga Govortsova Valeria Savinykh | 4–6, 0–6 |
| Loss | 0–2 | Aug 2019 | Lexington Challenger, US | W60 | Hard | Jamie Loeb | Robin Anderson Jessika Ponchet | 6–7(4), 7–6(5), [7–10] |
| Loss | 0–3 | Feb 2024 | Guanajuato Open, Mexico | W100 | Hard | Rebecca Marino | Hailey Baptiste Whitney Osuigwe | 5–7, 4–6 |
| Result | Year | Tournament | Surface | Opponent | Score |
| Loss | 2017 | Wimbledon | Grass | Claire Liu | 2–6, 7–5, 2–6 |
| Season | 2022 | Total |
| Wins | 1 | 1 |
| # | Player | Rank | Event | Surface | Rd | Score | ALR |
| 2022 | |||||||
| 1. | Anett Kontaveit | No. 7 | Miami Open, US | Hard | 2R | 6–0, 3–6, 6–4 | No. 65 |