I don't know how to group the 4 1 table tennis match.

1. Divide into 8 groups (A, B, C, D, E, F, G, H), with 5 people in each group and 6 people in each group (randomly generated), and conduct group round robin, with the top two in each group.

Second, after the top two in each group are produced, the lottery will be re-drawn, and the top eight will be produced in the form of the first place in the small group drawing the second place. The winner will enter the quarterfinals, and the loser will compete for five or eight places.

After the top three and the top four are produced, a cross competition will be held to produce two finalists. The winner enters the final, and the loser competes for 3 or 4 places.

Thank you, I am very happy! Happy table tennis! Goodbye!