Jang Su-jeong
Jang Su-jeong is a South Korean tennis player.
Jang has won seven singles and seven doubles titles on the ITF Women's Circuit. On 12 June 2017, she reached her career-high singles ranking of world No. 120. She peaked at No. 218 in the doubles rankings on 7 March 2016.
Her most successful performance to date came at the 2013 KDB Korea Open, where she reached the quarterfinals with a three-set win over Ons Jabeur of Tunisia.
Career
Jang had a good career as a singles junior player, reaching her highest ranking in that category as world No. 68. Her best junior Grand Slam tournament was at the 2011 US Open, where she reached the third round. Her lone junior singles title was the Yangdu International Junior Championships title.She won her first ITF Women's Circuit title in Bundaberg, Australia on 30 March 2013, winning the doubles title with Lee So-ra. The pair defeated Miki Miyamura and Varatchaya Wongteanchai in the final.
WTA 125K series finals
Singles: 1 (1 runner–up)
ITF Circuit finals
Singles: 20 (7 titles, 13 runner–ups)
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
| Loss | 0–1 | Apr 2012 | ITF Andijan, Uzbekistan | $10,000 | Hard |  Sabina Sharipova | 2–6, 4–6 |
| Loss | 0–2 | Jul 2012 | ITF Pattaya City, Thailand | $10,000 | Hard |  Nungnadda Wannasuk | 4–6, 6–4, 4–6 |
| Win | 1–2 | Feb 2014 | ITF Salisbury, Australia | $15,000 | Hard |  Wang Yafan | 6–3, 7–6 |
| Win | 2–2 | Mar 2014 | ITF Mildura, Australia | $15,000 | Grass |  Alison Bai | 6–1, 6–3 |
| Win | 3–2 | May 2014 | ITF Karuizawa, Japan | $25,000 | Grass | Arina Rodionova | 6–3, 6–4 |
| Win | 4–2 | Feb 2015 | ITF Clare, Australia | $15,000 | Hard |  Pia König | 6–3, 6–3 |
| Loss | 4–3 | Mar 2015 | ITF Port Pirie, Australia | $15,000 | Hard |  Han Na-lae | 6–3, 4–6, 2–6 |
| Win | 5–3 | Mar 2015 | ITF Bangkok, Thailand | $15,000 | Hard |  Miyabi Inoue | 6–2, 6–4 |
| Loss | 5–4 | May 2015 | ITF Nanning, China | $25,000 | Hard |  Hsieh Su-wei | 2–6, 3–6 |
| Loss | 5–5 | May 2015 | ITF Seoul, South Korea | $50,000 | Hard | Riko Sawayanagi | 4–6, 4–6 |
| Loss | 5–6 | Aug 2015 | ITF Tsukuba, Japan | $25,000 | Hard | Lee Ya-hsuan | 3–6, 3–6 |
| Loss | 5–7 | Feb 2016 | ITF Perth, Australia | $25,000 | Hard | Jaimee Fourlis | 4–6, 6–2, 6–7 |
| Win | 6–7 | Apr 2016 | ITF Kashiwa, Japan | $25,000 | Hard | Wang Yafan | 6–4, 1–6, 6–3 |
| Loss | 6–8 | Jun 2016 | ITF Tokyo, Japan | $25,000 | Hard | Akiko Omae | 2–6, 1–6 |
| Loss | 6–9 | Oct 2016 | ITF Iizuka Japan | $25,000 | Hard | Chang Kai-chen | 3–6, 4–6 |
| Loss | 6–10 | Oct 2016 | ITF Liuzhou, China | $50,000 | Hard |  Nina Stojanović | 3–6, 4–6 |
| Loss | 6–11 | Apr 2017 | ITF Kashiwa, Japan | $25,000 | Hard | Mai Minokoshi | 6–3, 2–6, 4–6 |
| Loss | 6–12 | May 2017 | ITF Fukuoka, Japan | $60,000 | Carpet |  Magdaléna Rybáriková | 2–6, 3–6 |
| Win | 7–12 | Jul 2019 | ITF Nonthaburi, Thailand | W25 | Hard | Xun Fangying | 6–1, 2–6, 6–4 |
| Loss | 7–13 | Aug 2019 | ITF Guiyang, China | W25 | Hard |  Aleksandrina Naydenova | 4–6, 2–6 |
Doubles (7–7)
| Outcome | No. | Date | Tournament | Surface | Partner | Opponents | Score |
| Runner-up | 1. | 2 September 2012 | Yeongwol, South Korea | Hard | Han Na-lae | Kim Sun-jung Yu Min-hwa | 3–6, 5–7 |
| Winner | 1. | 30 March 2013 | Bundaberg, Australia | Clay | Lee So-ra | Miki Miyamura Varatchaya Wongteanchai | 7–6, 4–6, |
| Runner-up | 2. | 16 June 2013 | Gimcheon, South Korea | Hard | Riko Sawayanagi | Kim Na-ri Lee Ye-ra | 3–6, 3–6 |
| Runner-up | 3. | 23 June 2013 | Gimcheon, South Korea | Hard | Riko Sawayanagi | Kang Seo-kyung Kim Ji-young | 5–7, 1–6 |
| Runner-up | 4. | 23 February 2014 | Salisbury, Australia | Hard | Lee So-ra | Misa Eguchi Miki Miyamura | 2–6, 1–6 |
| Winner | 2. | 9 March 2014 | Mildura, Australia | Grass | Lee So-ra | Jessica Moore Aleksandrina Naydenova | 6–1, 1–6, |
| Runner-up | 5. | 22 June 2014 | Lenzerheide, Switzerland | Clay |  Justyna Jegiołka |  Louisa Chirico Sanaz Marand | 3–6, 4–6 |
| Winner | 3. | 28 March 2015 | Bangkok, Thailand | Hard | Vojislava Lukić |  Chanel Simmonds  Emily Webley-Smith | 6–4, 6–4 |
| Runner-up | 6. | 24 April 2015 | Shenzhen, China | Hard | Han Na-lae | Noppawan Lertcheewakarn Lu Jiajing | 4–6, 5–7 |
| Winner | 4. | 24 July 2015 | Zhengzhou, China | Hard | Han Na-lae | Liu Chang  Zhang Ling | 6–3, 6–0 |
| Winner | 5. | 5 September 2015 | Noto, Japan | Hard | Lee So-ra | Chiaki Okadaue Kyōka Okamura | 6–3, 2–6, |
| Runner-up | 7. | 19 February 2016 | Perth, Australia | Hard | Han Na-lae | Tammi Patterson Katarzyna Piter | 6–4, 2–6, |
| Winner | 6. | 8 April 2017 | Kashiwa, Japan | Hard | Lee Ya-hsuan | Han Na-lae Peangtarn Plipuech | 6–3, 3–6, |
| Winner | 7. | 17 August 2019 | Huangshan, China | Hard | Kim Na-ri | Eudice Chong Ye Qiuyu | 7–5, 6–1 |