Mainz were unable to gain a foothold into the first half and had to wait until the 38th minute to get their first chance on target, as Jean-Philippe Mateta's header came close.
In her WCBA debut, Fang displayed impressive speed and sharpness on the offensive end, but due to a lack of experience, she was called two offensive fouls in a row when the two sides were involved in jigsaw-like contention in the third quarter.
Burel wasted three set points when she took a 5-3 lead in the first set and stormed to 40-0 in the ninth game. But Zhang battled back to save all three, and held the serve before breaking Burel's in the tenth to level the score at 5-5.
Domenec Torrent's men are now fourth in the 20-team standings, three points behind leader Atletico Mineiro.
Zhengzhou, in Henan province, will again host the final ITTF event of the year after 2019, as the 2020 ITTF Finals will return to the Zhengzhou Olympic Sports Center from November 19 to 22.
Namibia Football Association (NFA) spokesperson Dan Kamati said that although their counterparts named a strong team, he chose to rather focus on what his team can offer and is confident that they will compete.
Zhejiang's Shan Wanli made six 3-pointers on nine attempts to score a game-high 29 points. Wang Haimei chipped in with 13.
"Since then, I've made huge progress because I've played a few big matches, against Simona, against Caroline Wozniacki and Naomi Osaka, and I think it helped me a lot and now I feel like I can handle the pressure," Swiatek added.
Bolivia will field a depleted team for the matches in Sao Paulo on October 9 and La Paz four days later amid a series of controversies affecting the national football scene.
Zhejiang outscored 52-37 at the interval, which proved to be a key part of their victory. Dong Ke'er made six 3-pointers to score 26 points. Huang Jiali shot 11 of 14 from the field for 26 points.
Nadal will face Sebastian Korda, the son of 1998 Australian Open winner Petr Korda, in the next round. The American youngster secured his first appearance in a Grand Slam round of 16 by beating fellow qualifier Pedro Martinez 6-4, 6-3, 6-1 to advance.