Who did Qi Shenggao worship on the boat?

Mazu. In the plot of episode 29 of The Knockout, Mazu is the patron saint of peace in coastal areas and the god of keeping people safe. At that time, Gao Qi was hiding in the boat, and Gao Qi shook the Holy Grail at Mazu, which also represented the idea of "praying for peace". The Knockout TV series is produced by iQiyi and Bai Liu Film and Television, directed by the Central Political and Legal Publicity and Education Bureau and the Political and Legal Comprehensive Information Center of the Central Political Commissar, directed by Xu Jizhou, starring Zhang Yi, Zhang Songwen, whitehairpin and Zhang Zhijian, specially invited by Han Tongsheng, starring Wu Jian and Hao Ping, and starring Gao Ye, Jia Bing and Li Jian.