Yan Chong Chen advanced when Chen Liang retired 6-2 1-1 in the Changsha 10K qualifying round.
Chong Chen Y. advanced when Liang C. retired.
Yan Chong Chen beat Chen Liang 6-2 1-1 after Chen Liang retired. Umpiry, "Yan Chong Chen vs Chen Liang — Changsha 10K Qualifying Round", https://umpiry.com/match/2005-04-11/chen-vs-liang-changsha-10k-qf?utm_source=cite (as of 11 April 2005).