| Yang Zi-Jun | |
| Residence: | Hong Kong |
| Birth Date: | 1990 2, df=yes |
| Birth Place: | Hong Kong |
| Turnedpro: | 2006 |
| Singlesrecord: | 6–3 |
| Singlestitles: | 1 ITF |
| Highestsinglesranking: | No. 418 (30 November 2009) |
| Doublesrecord: | 6–6 |
| Doublestitles: | 1 ITF |
| Highestdoublesranking: | No. 746 (26 July 2010) |
Yang Zi-jun, also known as Jessica Yang[1] (born February 8, 1990),[2] is a former professional tennis player from Hong Kong. A member of the Hong Kong Fed Cup team (last match in 2012), she has a career-high ranking of No. 22 in the world in juniors.[3]
She has reached the latter stages of many junior tournaments; she won the 2007 Girls Under-18 Toyota Open in Bangkok, Thailand, beating Khunpak Issara 6–3, 6–0.[4]
In the 2008 Wimbledon girls' singles, where she just missed out on being seeded,[5] she beat Anna Orlik of Belarus, 6–2, 6–1.[6] Her run was halted in the second round when she was beaten by junior world No. 3, Arantxa Rus, 6–3, 6–0.[7]
Her best performance in a professional tournament is reaching the second round of various tournaments; the Bangkok tournament in 2006, where she lost to Thassha Vitayaviroj; at another tournament in Bangkok in 2006, as a qualifier, she lost to Lee Jin-a; in Jakarta in 2006 where she lost to Lavinia Tananta, and the 2008 tournament in Bulungan where she lost in the 2nd round to second seed Liang Chen.[8] All the tournaments are $10,000 tier tournaments, the lowest category of the ITF Women's Circuit.
| Result | W–L | Date | Location | Surface | Partner | Opponents | Score | |
|---|---|---|---|---|---|---|---|---|
| Loss | 0–1 | 6 August 2006 | Bangkok, Thailand | Hard |  Lee Jin-a  Pichittra Thongdach | 2–6, 1–6 | ||
| Loss | 0–2 | 5 May 2008 | Tarakan, Indonesia | Hard | Ayu Fani Damayanti Liza Andriyani | 2–6, 3–6 | ||
| Win | 1–2 | 24 August 2009 | Nonthaburi, Thailand | Hard |  Zhang Ling | Beatrice Gumulya Lavinia Tananta | 6–4, 6–3 | |
| Loss | 1–3 | 11 April 2010 | Ningbo, China | Hard |  Wang Yafan Yang Zhaoxuan | 6–1, 2–6, [4–10] |