ITF China F13 | 07/20 02:00 | 26 | Fajing Sun v Aoran Wang | 6-3,6-2 | |
ITF China F13 | 07/18 05:30 | 25 | Fajing Sun v Jianhui Li | 6-1,7-5 | |
ITF China F12 | 07/15 05:00 | 28 | Chuhan Wang v Fajing Sun | 7-5,7-6 | |
ITF China F12 | 07/14 02:00 | 27 | [427] Fajing Sun v Nam Hoang Ly [475] | 6-4,4-6,6-1 | |
ITF China F12 | 07/13 02:00 | 26 | Fajing Sun v Huixin Wang | 6-2,6-2 | |
ITF China F12 | 07/11 02:35 | 25 | Fajing Sun v Kelsey Stevenson | 6-1,6-1 | |
ITF China F11 | 07/07 02:30 | 27 | [339] Dzmitry Zhyrmont v Fajing Sun [427] | 6-4,5-7,6-4 | |
ITF China F11 | 07/05 02:00 | 26 | Hao Wu v Fajing Sun | Retired | |
ITF China F11 | 07/03 07:00 | 25 | Sida Zeng v Fajing Sun | 1-6,2-6 | |
ITF China F10 | 06/28 03:45 | 26 | Martins Podzus v Fajing Sun | 1-6,6-4,6-3 | |
ITF China F10 | 06/26 04:00 | 25 | Zhuoyang Qiu v Fajing Sun | 1-6,2-6 | |
ITF China F8 | 05/23 02:00 | 25 | [426] Fajing Sun v Kaichi Uchida [457] | 6-7,2-6 | |
ITF China F7 | 05/19 04:30 | 27 | Fajing Sun v Harry Bourchier | 6-7,2-6 | |
ITF China F7 | 05/18 02:00 | 26 | Fajing Sun v Renta Tokuda | 6-4,6-3 | |
ITF China F7 | 05/16 03:15 | 25 | Fajing Sun v Yecong He | 6-1,7-5 | |
ITF China F6 | 05/08 04:10 | 25 | Chuhan Wang v Fajing Sun | 6-1,6-1 | |
Challenger Anning | 04/25 07:35 | 25 | [431] Fajing Sun v Janko Tipsarevic [71] | 0-6,4-6 | |
Challenger Qingdao | 04/18 08:05 | 25 | Mathias Bourgue v Fajing Sun | 6-0,6-2 | |
ITF China F5 | 04/16 02:00 | 29 | Fajing Sun v Bradley Mousley | 7-6,6-2 | |
ITF China F5 | 04/15 03:00 | 28 | Fajing Sun v Harry Bourchier | 6-3,5-7,7-6 | |
ITF China F5 | 04/14 04:30 | 27 | Fajing Sun v Kuan-Yi Lee | Walkover | |
ITF China F5 | 04/12 03:00 | 26 | Fajing Sun v Chuhan Wang | 4-6,6-2,6-3 | |
ITF China F5 | 04/11 05:10 | 25 | Zhe Li v Fajing Sun | 3-6,2-6 | |
ITF China F4 | 04/04 03:05 | 25 | Fajing Sun v Su Hao Zhong | Retired | |
ITF Israel F2 | 03/23 09:55 | 27 | Fajing Sun v Ti Chen | 2-6,6-4,5-7 | |
ITF Israel F2 | 03/22 08:30 | 26 | Fajing Sun v Ben Patael | 6-2,6-0 | |
ITF Israel F2 | 03/21 10:25 | 25 | Fajing Sun v Yannai Barkai | 6-2,6-1 | |
ITF Egypt F9 | 03/16 09:55 | 26 | Fajing Sun v Johan Nikles | 4-6,4-6 | |
ITF Egypt F9 | 03/15 10:05 | 25 | Fajing Sun v Yvo Panak | 6-3,6-2 | |
ITF Egypt F8 | 03/10 08:00 | 27 | Ugo Humbert v Fajing Sun | 7-6,6-4 |
Sun Fajing (Chinese: 孙发京; pinyin: Sūn Fājīng; Mandarin pronunciation: [swə́n fá tɕíŋ]; born 3 October 1996) is a Chinese tennis player.
Sun has a career high ATP singles ranking of world No. 351 achieved on 10 February 2020. He also has a career high ATP doubles ranking of world No. 181 achieved on 26 February 2024. He has reached 13 career singles finals posting a record of 5 wins and 8 losses, all coming on the ITF Futures tour. Additionally, he has reached 31 doubles finals posting a record of 16 wins and 15 losses, which includes 2 ATP Challenger Tour doubles titles.
Sun made his ATP main draw debut at the 2016 Chengdu Open, where he was granted a wildcard entry in the doubles draw alongside compatriot He Yecong. They were defeated in the first round by Raven Klaasen and Rajeev Ram in straight sets 4–6, 5–7.
The following year, he was again given a wildcard at the 2017 Chengdu Open with partner Te Rigele, and again he would lose in the first round to Nenad Zimonjic and Santiago Gonzalez in straight sets 4–6, 4–6.
In his third main draw appearance, he and partner Zhizhen Zhang were given a wildcard entry into the doubles draw of the 2018 ATP Shenzhen Open but lost in the first round to Marcin Matkowski and Nicholas Monroe 4–6, 2–6.
His fourth and most recent ATP appearance (also his third at the tournament) was a wildcard entry into the doubles draw of the 2019 Chengdu Open pairing up with Wang Aoran, and to round up an 0–4 record he lost to Dominic Inglot and Austin Krajicek 1–6, 6–0, [8–10].
He was given a wildcard at the 2023 China Open (tennis) partnering Zhou Yi (tennis). He received also a wildcard in doubles partnering Li Zhe (tennis) at the 2023 Rolex Shanghai Masters.