1. mentoring relationship: in the top list of 16, Dai Yong and Meng Fanyu, Shi Xin and Yang Ru are mentoring relationships respectively.
2. Competitive relationship: Shi Xin and Dai Yong are also competitors, and there is a competitive relationship between them.
3. Friendship: In the interview after the game, Dai Yong said that he and Shi Xin are old friends and it is very important to communicate with each other. I hope these older billiards players can inspire more people to join billiards and promote the development of billiards in China.
4. Disciple relationship: Both Shi Xinhe had learned the knowledge and skills of billiards from Chu.
To sum up, Shi Xin and Dai Yong are both apprentices, rivals, friends and apprentices.