Juniors

Yang was named International Tennis Federation (ITF) Junior World Champion for the 2008 season by the ITF.

As a junior, he compiled a 66–23 win–loss record in singles (and 61–16 in doubles), achieving his combined ranking of No. 1 in the world in July 2008.

He reached 4 Junior Grand Slam finals in 2008, winning 3 titles. He started by losing the 2008 Australian Open – Boys' singles final, then rebounded to win the 2008 Australian Open – Boys' doubles, the 2008 French Open – Boys' singles and the 2008 Wimbledon Boys' Doubles titles.

Pro tour

Yang competes today on the ATP Challenger Tour and the ATP World Tour, both in singles and doubles. He reached his highest ATP singles ranking, No. 164, on 14 May 2012, and his highest ATP doubles ranking, No. 127, on 15 July 2019. Yang is coached by Lhen Man.^[1][2][3]

In the 2012 US Open, Yang reached the third qualifying round, where he lost to Teymuraz Gabashvili. Later he qualified to the ATP Bangkok, where he lost in first round to Grigor Dimitrov.

In 2013, he defeated Tatsuma Ito to reach semifinals of the An-Ning Challenger, where he lost to James Ward. At Kun-Ming he also reached semifinals after winning over Yuichi Sugita and Wu Di.

Yang defeated Marius Copil to reach third round of qualifying of the 2014 Australian Open, after which he lost to Dušan Lajović. At the Maui Challenger he reach the final, where he lost to Bradley Klahn. At the Liberec Challenger he beat world number 40 Pablo Cuevas and Norbert Gombos to reach semifinals, where he was defeated by Horacio Zeballos.

Singles: 24 (11–13)

Result	W–L	Date	Tournament	Tier	Surface	Opponent	Score
Win	1–0	Jan 2009	China F1, Guangzhou	Futures	Hard	Zeng Shaoxuan	6–3, 5–7, 6–4
Loss	1–1	Jun 2009	Malaysia F2, Petaling Jaya	Futures	Hard	Luigi D'Agord	2–6, 2–6
Loss	1–2	Jul 2009	Korean Rep. F5, Gyeongsan	Futures	Hard	Chen Ti	2–6, 2–6
Loss	1–3	Jul 2009	Korean Rep. F6, Gyeongsan	Futures	Hard	Kim Young-jun	4–6, 1–6
Loss	1–4	Oct 2009	Japan F8, Kashiwa	Futures	Hard	Junn Mitsuhashi	1–6, 6–7(4–7)
Win	2–4	Jun 2010	Malaysia F1, Kuala Lumpur	Futures	Hard	Kim Young-jun	6–2, 6–2
Win	3–4	Jul 2011	Chinese Taipei F1, Taipei	Futures	Hard	Junn Mitsuhashi	6–0, 6–3
Loss	3–5	Aug 2011	Beijing, China, P.R.	Challenger	Hard	Farrukh Dustov	1–6, 6–7(4–7)
Loss	3–6	Jan 2014	Maui, USA	Challenger	Hard	Bradley Klahn	2–6, 3–6
Loss	3–7	Jun 2014	China F7, Putian	Futures	Hard	Huang Liang-chi	5–7, 3–6
Win	4–7	Apr 2015	China F1, Anning	Futures	Clay	Boy Westerhof	7–6(7–3), 6–4
Win	5–7	Apr 2015	China F2, Anning	Futures	Clay	Kim Young-seok	6–0, 7–5
Loss	5–8	Apr 2015	China F3, Anning	Futures	Clay	Huang Liang-chi	3–6, 2–6
Win	6–8	Aug 2015	Chinese Taipei F1, Kaohsiung	Futures	Hard	Bai Yan	4–6, 6–4, 1–0 ret.
Loss	6–9	Aug 2015	Chinese Taipei F2, Kaohsiung	Futures	Hard	Bai Yan	3–6, 4–6
Win	7–9	Feb 2017	China F2, Anning	Futures	Clay	Jose Statham	2–6, 6–4, 7–6(9–7)
Win	8–9	Aug 2017	Macedonia F2, Skopje	Futures	Clay	Nino Serdarušić	7–6(7–2), 4–6, 6–3
Win	9–9	Aug 2017	Turkey F29, Mersin	Futures	Clay	Thomas Bréchemier	6–1, 6–0
Loss	9–10	Aug 2017	Turkey F30, Istanbul	Futures	Clay	Alessandro Bega	6–7(3–7), 6–3, 5–7
Loss	9–11	Sep 2017	Gwangju, Korea, Rep.	Challenger	Hard	Matthias Bachinger	3–6, 4–6
Win	10–11	Jan 2018	China F2, Anning	Futures	Clay	Steven Diez	6–3, 3–6, 7–6(7–4)
Win	11–11	Jan 2018	China F3, Anning	Futures	Clay	Lee Kuan-yi	6–4, 6–7(5–7), 6–1
Loss	11–12	Jul 2019	M25 Kunshan, China	World Tennis Tour	Hard	Fajing Sun	2–6, 2–6
Loss	11–13	Jul 2019	M25 Taipei, Taiwan	World Tennis Tour	Hard	Renta Tokuda	2–6, 6–2, 0-6

Doubles: 45 (25–20)

Result	W–L	Date	Tournament	Tier	Surface	Partner	Opponents	Score
Loss	0–1	Sep 2006	Japan F9, Osaka	Futures	Carpet	Lee Hsin-han	Yaoki Ishii Hiroki Kondo	4–6, 3–6
Loss	0–2	Jun 2007	India F5, Delhi	Futures	Hard	Lee Hsin-han	Tushar Liberhan Sanam Singh	4–6, 5–7
Win	1–2	Jun 2007	China F4, Guangzhou	Futures	Hard	Lee Hsin-han	Yu Xinyuan Zeng Shaoxuan	6–4, 2–6, 7–6(7–5)
Loss	1–3	Aug 2007	Indonesia F2, Semarang	Futures	Hard	Peng Hsien-yin	Hiroki Kondo Takahiro Terachi	6–3, 6–7(5–7), 3–6
Win	2–3	Oct 2008	Japan F10, Kashiwa	Futures	Hard	Yi Chu-huan	Huang Chin-yu Peng Hsien-yin	6–1, 6–2
Loss	2–4	Oct 2008	Japan F11, Tokyo	Futures	Hard	Yi Chu-huan	Yaoki Ishii Hiroki Kondo	4–6, 2–6
Loss	2–5	Nov 2008	Cancún, Mexico	Challenger	Clay	Lee Hsin-han	Łukasz Kubot Oliver Marach	5–7, 2–6
Win	3–5	Jan 2009	China F1, Guangzhou	Futures	Hard	Lee Hsin-han	Li Zhe Wang Yu jr.	6–0, 6–3
Win	4–5	Apr 2009	Japan F3, Kōfu	Futures	Hard	Yi Chu-huan	Yuya Kibi Tomohiro Shinokawa	6–1, 6–0
Loss	4–6	Jun 2009	Malaysia F1, Kuala Lumpur	Futures	Hard	Lee Hsin-han	Arnau Brugués Davi Luigi D'Agord	6–7(4–7), 4–6
Win	5–6	Jul 2009	Malaysia F3, Kuala Lumpur	Futures	Hard	Yu Xinyuan	Aqeel Khan Si Yew Ming	7–6(7–4), 6–3
Win	6–6	Jul 2009	Korean Rep. F5, Gyeongsan	Futures	Hard	Chen Ti	Satoshi Iwabuchi Gouichi Motomura	7–6(7–4), 6–4
Win	7–6	Jul 2009	Korean Rep. F6, Gyeongsan	Futures	Hard	Lee Hsin-han	Chen Ti Satoshi Iwabuchi	7–6(7–4), 5–7, [10–8]
Win	8–6	Aug 2009	Almaty, Kazakhstan	Challenger	Hard	Denys Molchanov	Pierre-Ludovic Duclos Alexey Kedryuk	4–6, 7–6(7–5), [11–9]
Win	9–6	Sep 2009	Thailand F3, Nonthaburi	Futures	Hard	Lee Hsin-han	Nesa Arta Christopher Rungkat	7–6(7–4), 6–4
Loss	9–7	Oct 2009	Japan F8, Kashiwa	Futures	Hard	Lee Hsin-han	Junn Mitsuhashi Yi Chu-huan	4–6, 2–6
Loss	9–8	Nov 2009	Chuncheon, Korea, Rep.	Challenger	Hard	Lee Hsin-han	Andis Juška Dmitri Sitak	6–3, 3–6, [2–10]
Win	10–8	Nov 2009	Yokohama, Japan	Challenger	Hard	Yi Chu-huan	Alexey Kedryuk Junn Mitsuhashi	6–7(9–11), 6–3, [12–10]
Loss	10–9	Mar 2010	China F1, Kaiyuan	Futures	Hard	Lee Hsin-han	Sadik Kadir Purav Raja	6–4, 3–6, [9–11]
Loss	10–10	Mar 2010	China F2, Mengzi	Futures	Hard	Lee Hsin-han	Michael Leong Sebastian Rieschick	2–6, 5–7
Loss	10–11	May 2010	Busan, Korea, Rep.	Challenger	Hard	Pierre-Ludovic Duclos	Rameez Junaid Alexander Peya	4–6, 5–7
Win	11–11	Jun 2010	Malaysia F1, Kuala Lumpur	Futures	Hard	Yi Chu-huan	Kaden Hensel Dane Propoggia	6–3, 6–3
Loss	11–12	Aug 2010	Samarkand, Uzbekistan	Challenger	Clay	Lee Hsin-han	Andis Juška Deniss Pavlovs	5–7, 3–6
Win	12–12	Jul 2011	Wuhai, China, P.R.	Challenger	Hard	Lee Hsin-han	Feng He Zhang Ze	6–2, 7–6(7–4)
Win	13–12	May 2013	Busan, Korea, Rep.	Challenger	Hard	Peng Hsien-yin	Jeong Suk-young Lim Yong-kyu	6–4, 6–3
Loss	13–13	Jun 2014	China F6, Putian	Futures	Hard	Peng Hsien-yin	Gong Maoxin Li Zhe	1–6, 3–6
Win	14–13	Jun 2014	China F7, Putian	Futures	Hard	Peng Hsien-yin	Huang Liang-chi Nicolas Meister	1–6, 6–1, [15–13]
Loss	14–14	Aug 2014	Chinese Taipei F2, Kaohsiung	Futures	Hard	Arata Onozawa	Wang Chieh-fu Yi Chu-huan	3–6, 2–6
Loss	14–15	Nov 2014	Toyota, Japan	Challenger	Carpet (i)	Bumpei Sato	Toshihide Matsui Yasutaka Uchiyama	6–7(6–8), 2–6
Loss	14–16	Apr 2015	China F1, Anning	Futures	Clay	Bai Yan	Huang Liang-chi Enrique López Pérez	3–6, 6–4, [7–10]
Win	15–16	Aug 2015	China F12, Fuzhou	Futures	Hard	Hsieh Cheng-peng	Yuya Kibi Arata Onozawa	6–3, 7–5
Win	16–16	Aug 2015	Chinese Taipei F1, Kaohsiung	Futures	Hard	Hsieh Cheng-peng	Bai Yan Yi Chu-huan	6–4, 7–6(7–5)
Win	17–16	Sep 2015	Kaohsiung, Chinese Taipei	Challenger	Hard	Hsieh Cheng-peng	Gong Maoxin Peng Hsien-yin	6–2, 6–2
Win	18–16	May 2016	Taipei, Chinese Taipei	Challenger	Carpet (i)	Hsieh Cheng-peng	Frederik Nielsen David O'Hare	7–6(8–6), 6–4
Loss	18–17	May 2016	Samarkand, Uzbekistan	Challenger	Clay	Hsieh Cheng-peng	Denis Matsukevitch Andrei Vasilevski	4–6, 7–5, [5–10]
Win	19–17	Jul 2016	Gimcheon, Korea, Rep.	Challenger	Hard	Hsieh Cheng-peng	Nicolás Barrientos Ruben Gonzales	w/o
Loss	19–18	Jul 2017	Macedonia F1, Skopje	Futures	Clay	Dane Propoggia	Maximilian Neuchrist David Pichler	6–7(1–7), 3–6
Win	20–18	Aug 2017	Macedonia F2, Skopje	Futures	Clay	Dane Propoggia	Nicholas Horton Aziz Kijametović	3–6, 6–4, [10–2]
Win	21–18	Aug 2018	Jinan, China, P.R.	Challenger	Hard	Hsieh Cheng-peng	Alexander Bublik Alexander Pavlioutchenkov	7–6(7–5), 4–6, [10–5]
Win	22–18	Sep 2018	Kaohsiung, Chinese Taipei	Challenger	Hard (i)	Hsieh Cheng-peng	Hsu Yu-hsiou Jimmy Wang	6–7(3–7), 6–2, [10–8]
Loss	22–19	Nov 2018	Pune, India	Challenger	Hard	Hsieh Cheng-peng	Vijay Sundar Prashanth Ramkumar Ramanathan	6–7(3–7), 7–6(7–5), [7–10]
Win	23–19	Jun 2019	Shymkent, Kazakhstan	Challenger	Clay	Nikola Čačić	André Göransson Marc-Andrea Hüsler	6–4, 6–4
Loss	23–20	Jun 2019	Fergana, Uzbekistan	Challenger	Hard	Nikola Čačić	Evan King Hunter Reese	3–6, 7–5, [4–10]
Win	24–20	Sep 2019	Kaohsiung, Chinese Taipei	Challenger	Hard	Hsieh Cheng-peng	Evan King Hunter Reese	6–4, 7–6(7–4)
Win	25–20	Nov 2019	Shenzhen, China, P.R.	Challenger	Hard	Hsieh Cheng-peng	Mikhail Elgin Ramkumar Ramanathan	6–2, 7–5

Junior Grand Slam finals

Singles: 2 (1 title, 1 runner-up)

Result	Year	Tournament	Surface	Opponent	Score
Loss	2008	Australian Open	Hard	Bernard Tomic	6–4, 6–7(5-7), 0-6
Win	2008	French Open	Clay	Jerzy Janowicz	6–3, 7–6(7–5)

Doubles: 2 (2 titles)

Result	Year	Tournament	Surface	Partner	Opponents	Score
Win	2008	Australian Open	Hard	Cheng-Peng Hsieh	Vasek Pospisil Cesar Ramirez	3–6, 7–5, [10-5]
Win	2008	Wimbledon	Grass	Cheng-Peng Hsieh	Bernard Tomic Matt Reid	6–4, 2–6, [12-10]