Sun Fajing

In this Chinese name, the family name is Sun (孙).

Sun Fajing (Chinese: 孙发京; pinyin: Sūn Fājīng; Mandarin pronunciation: [swə́n fá tɕíŋ]; born 3 October 1996) is a Chinese tennis player.

Sun Fajing
孙发京

Country (sports)	China
Residence	Beijing, China
Born	(1996-10-03) 3 October 1996 (age 28) Shanxi, China
Height	1.78 m (5 ft 10 in)
Plays	Right-handed (two-handed backhand)
Prize money	$287,873
Singles
Career record	0–2 (at ATP Tour level, Grand Slam level, and in Davis Cup)
Career titles	1 Challenger
Highest ranking	No. 198 (19 May 2025)
Current ranking	No. 198 (19 May 2025)
Doubles
Career record	1–9 (at ATP Tour level, Grand Slam level, and in Davis Cup)
Career titles	3 Challengers
Highest ranking	No. 181 (26 February 2024)
Current ranking	No. 214 (5 May 2025)
Last updated on: 15 May 2025.

Sun has a career high ATP singles ranking of world No. 198 achieved on 19 May 2025. He also has a career high ATP doubles ranking of world No. 181 achieved on 26 February 2024. He is the current No. 4 Chinese player.^[1]

Career

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.

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.

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.

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.

He was given a wildcard at the 2023 China Open partnering Zhou Yi. He received a wildcard in doubles partnering Li Zhe at the 2023 Rolex Shanghai Masters and also a qualifying wildcard in singles at the 2024 Rolex Shanghai Masters where he upset fourth seed Borna Ćorić in the first round of qualifying but lost in the second in straight sets to alternate player Ramkumar Ramanathan.^[2][3][4][5]

Fajing Sun reached the top 200 on 19 May 2025, following his maiden Challenger title at the 2025 Wuxi Open.^[6][7][8]

ATP Challenger Tour finals

Doubles: 6 (3 titles, 3 runner-ups)

Legend ATP Challenger Tour (3–3)

Finals by surface Hard (3–3) Clay (0–0) Grass (0–0) Carpet (0–0)

Result	W–L	Date	Tournament	Tier	Surface	Partner	Opponents	Score
Win	1–0	Oct 2017	Suzhou, China	Challenger	Hard	Xin Gao	Gong Maoxin Zhang Ze	7–6(7–5), 4–6, [10–7]
Win	2–0	Sep 2019	Shanghai, China	Challenger	Hard	Xin Gao	Marc Polmans Scott Puodziunas	2–6, 6–4, [10–7]
Loss	2–1	Jul 2023	Segovia, Spain	Challenger	Hard	Francis Casey Alcantara	Dan Added Pierre-Hugues Herbert	6–4, 3–6, [10–12]
Loss	2–2	Aug 2023	Zhangjiagang, China	Challenger	Hard	Francis Casey Alcantara	Ray Ho Matthew Romios	3–6, 4–6
Loss	2–3	Jan 2024	Nonthaburi II, Thailand	Challenger	Hard	Francis Casey Alcantara	Manuel Guinard Grégoire Jacq	4–6, 6–7(6–8)
Win	3–3	Oct 2024	Hangzhou, China	Challenger	Hard	Te Rigele	Thomas Fancutt Yuta Shimizu	6–3, 7–5

ITF Futures/World Tennis Tour finals

Singles: 20 (6 titles, 14 runner-ups)

Legend ITF Futures/WTT (6–14)

Finals by surface Hard (5–13) Clay (1–1) Grass (0–0) Carpet (0–0)

Result	W–L	Date	Tournament	Tier	Surface	Opponent	Score
Loss	0–1	Aug 2016	Thailand F1, Hua Hin	Futures	Hard	Chen Ti	3–6, 1–6
Loss	0–2	Feb 2017	Indonesia F1, Jakarta	Futures	Hard	Chen Ti	6–7(4–7), 3–6
Win	1–2	Apr 2017	China F5, Luzhou	Futures	Hard	Bradley Mousley	7–6(7–2), 6–2
Loss	1–3	Mar 2018	Qatar F1, Doha	Futures	Hard	Scott Griekspoor	4–6, 3–6
Loss	1–4	May 2018	China F6, Lu'an	Futures	Hard	Patrik Niklas-Salminen	6–2, 4–6, 4–6
Loss	1–5	Feb 2019	M15 Sharm El Sheikh, Egypt	WTT	Hard	Filip Bergevi	6–7(4–7), 6–7(2–7)
Win	2–5	May 2019	M25 Lu'an, China	WTT	Hard	Cui Jie	7–5, 6–4
Loss	2–6	Jun 2019	M25 Hengyang, China	WTT	Hard	Harry Bourchier	6–7(7–9), 1–6
Win	3–6	Jul 2019	M25 Kunshan, China	WTT	Hard	Yang Tsung-Hua	6–2, 6–2
Loss	3–7	Jul 2019	M25 Qujing, China	WTT	Hard	Bai Yan	3–6, 1–6
Loss	3–8	Oct 2022	M15 Monastir, Tunisia	WTT	Hard	Christoph Negritu	6–7(5–7), 6–7(5–7)
Win	4–8	Jun 2023	M25 Martos, Spain	WTT	Hard	Pedro Vives Marcos	7–6(7–3), 6–4
Win	5–8	Aug 2023	M25 Anning, China	WTT	Clay	Cui Jie	6–3, 4–6, 6–2
Loss	5–9	Aug 2023	M25 Yinchuan, China	WTT	Hard	Cui Jie	3–6, 5–7
Win	6–9	May 2024	M25 Lu'an, China	WTT	Hard	Mo Yecong	6–3, 6–1
Loss	6–10	May 2024	M25 Baotou, China	WTT	Clay (i)	Te Rigele	2–6, 4–6
Loss	6–11	Jul 2024	M25 Tianjin, China	WTT	Hard	Zhou Yi	6–4, 3–6, 5–7
Loss	6–12	Aug 2024	M25 Yinchuan, China	WTT	Hard	Bai Yan	4–6, 6–7(1–7)
Loss	6–13	Oct 2024	M25 Huzhou, China	WTT	Hard	Bai Yan	3–6, 6–4, 2–6
Loss	6–14	Oct 2024	M25 Qian Daohu, China	WTT	Hard	Elliot Benchetrit	3–6, 2–6

Doubles: 33 (16 titles, 17 runner-ups)

Legend ITF Futures/WTT (16–17)

Finals by surface Hard (13–13) Clay (3–4) Grass (0–0) Carpet (0–0)

Result	W–L	Date	Tournament	Tier	Surface	Partner	Opponents	Score
Loss	0–1	Feb 2016	China F1, Anning	Futures	Clay	Wang Aoran	Lin Hsin Enrique López Pérez	walkover
Loss	0–2	Jul 2016	China F10, Longyan	Futures	Hard	Wang Aoran	Bai Yan Li Zhe	6–7(1–7), 4–6
Win	1–2	Jul 2016	China F11, Anning	Futures	Clay	Wang Aoran	Ning Yuqing Qiu Zhuoyang	6–3, 6–4
Loss	1–3	Mar 2017	Egypt F8, Longyan	Futures	Hard	Chen Ti	Francis Casey Alcantara Benjamin Lock	3–6, 7–6(9–7), [7–10]
Win	2–3	May 2017	China F8, Fuzhou	Futures	Hard	Te Rigele	Alexander Sarkissian Finn Tearney	6–2, 6–4
Win	3–3	Jul 2017	China F12, Shenzhen	Futures	Hard	Lý Hoàng Nam	Francis Casey Alcantara Karunuday Singh	6–4, 6–4
Loss	3–4	Dec 2017	Thailand F12, Hua Hin	Futures	Hard	Xin Gao	Chung Hong Song Min-kyu	6–7(5–7), 6–3, [6–10]
Win	4–4	Mar 2018	Qatar F3, Doha	Futures	Hard	Wong Chun-hun	Matěj Vocel Marek Gengel	6–3, 6–3
Loss	4–5	May 2018	China F4, Wuhan	Futures	Hard	Wang Ruikai	Te Rigele Yuta Shimizu	6–7(3-7), 3–6
Loss	4–6	Jun 2018	China F7, Luzhou	Futures	Hard	Francis Casey Alcantara	Sami Reinwein Rhett Purcell	5–7, 3–6
Win	5–6	Jun 2018	China F8, Yinchuan	Futures	Hard	Francis Casey Alcantara	Wishaya Trongcharoenchaikul Kento Takeuchi	6–4, 2–6, [10–5]
Win	6–6	May 2019	M25 Wuhan, China	WTT	Hard	Te Rigele	Sora Fakuda Yuki Mochizuki	6–1, 3–6, [12–10]
Loss	6–7	Jun 2019	M25 Luzhou, China	WTT	Hard	Xin Gao	Wang Aoran Wu Hao	6–3, 1–6, [7–10]
Win	7–7	Jul 2019	M25 Kunshan, China	WTT	Hard	Xin Gao	Zeng Shihong Hua Runhao	6–2, 7–6(7–5)
Win	8–7	Jul 2019	M25 Qujing, China	WTT	Hard	Hua Runhao	Francis Casey Alcantara Rhett Purcell	6–1, 6–1
Win	9–7	May 2022	M25 Monastir, Tunisia	WTT	Hard	Hsu Yu-hsiou	Jayden Court Dane Sweeny	7–6(7–4), 6–3
Win	10–7	May 2022	M25 Monastir, Tunisia	WTT	Hard	Hsu Yu-hsiou	Blake Bayldon Jordan Smith	6–4, 7–6(7–2)
Loss	10–8	Jun 2022	M25 Chiang Rai, Thailand	WTT	Hard	Hsu Yu-hsiou	Congsup Congcar Shintaro Imai	4–6, 6–1, [8–10]
Win	11–8	Jul 2022	M15 Kottingbrunn, Austria	WTT	Clay	Niklas Schell	Stefano Battaglino Lorenzo Rottoli	6–4, 6–2
Loss	11–9	Oct 2022	M15 Monastir, Tunisia	WTT	Hard	Bruno Kuzuhara	James Frawley Christoph Negritu	4–6, 6–1, [6–10]
Loss	11–10	Oct 2022	M25 Jakarta, Indonesia	WTT	Hard	Seita Watanabe	Thomas Fancutt Brandon Walkin	6–4, 3–6, [6–10]
Loss	11–11	Oct 2022	M25 Jakarta, Indonesia	WTT	Hard	Coleman Wong	Tomohiro Masabayashi Seita Watanabe	6–4, 4–6, [7–10]
Loss	11–12	Apr 2023	M15 Singapore, Singapore	WTT	Hard	Francis Casey Alcantara	Justin Barki Igor Sijsling	1–6, 1–6
Win	12–12	Apr 2023	M25 Jakarta, Indonesia	WTT	Hard	Ray Ho	Francis Casey Alcantara Pruchya Isaro	6–4, 7–5
Win	13–12	Jun 2023	M25 La Nucia, Spain	WTT	Clay	Amr Elsayed	Dimitris Sakellaridis Stefanos Sakellaridis	6–2, 6–3
Win	14–12	Jul 2023	M25 Bakio, Spain	WTT	Hard	John Echeverría	Noah Lopez Robin Bertrand	6–3, 6–2
Loss	14–13	Jul 2023	M25 Roda de Bara, Spain	WTT	Hard	John Echeverría	Pedro Vives Marcos Alberto Barroso Campos	7–5, 3–6, [4–10]
Loss	14–14	Aug 2023	M25 Anning, China	WTT	Clay	Evan Zhu	Cui Jie Wang Xiaofei	6–3, 2–6, [8–10]
Win	15–14	May 2024	M25 Lu'an, China	WTT	Hard	Ajeet Rai	Cui Jie Lee Duck-hee	6–2, 6–2
Loss	15–15	May 2024	M25 Anning, China	WTT	Clay	Cui Jie	Jeffrey Chuan En Hsu Woobin Shin	6–2, 3–6, [5–10]
Loss	15–16	May 2024	M25 Baotou, China	WTT	Clay (i)	Cui Jie	Te Rigele Evan Zhu	3–6, 6–2, [6–10]
Loss	15–17	Jul 2024	M25 Tianjin, China	WTT	Hard	Chung Yun-seong	Hsu Yu-hsiou Ryotaro Taguchi	6–3, 3–6, [12–14]
Win	16–17	Oct 2024	M25 Qian Daohu, China	WTT	Hard	Te Rigele	Zheng Baoluo Hsieh Cheng-peng	6–3, 3–6, [10–3]