Qizhong Stadium is located in Shanghai's southern Minhang District, about an hour south of the center of the city. But although it's a bit of a trek, it's a relatively painless process. During the tournament, shuttle buses run from the southern terminus of Line 1, Xinzhuang Station (Xīnzhuāng Zhèn, 莘庄镇) to the tournament. At the subway station, take the pedestrian bridge outside (the south exit; you can't miss it), and keep your eyes peeled for the signage and buses. It's well marked and easy to find. The shuttle costs RMB 2 and takes you to the main gate.
After the matches end for the day, there are shuttles outside of the main gate that take passengers back to the Shanghai Indoor Stadium (RMB 10), where it's easy to get a cab to your abode or your Shanghai hotel.