Theerathorn played the role of the hero in the last game, scoring the winning goal from the 24th minute, leading the Thai national team to beat Vietnam to win the ASEAN Cup 2022.

On Monday, January 16, 2023, the ASEAN Cup 2022 Football Tournament Finals, Game 2, Thammasat Rangsit Stadium, the Thai national team opened their home to welcome the visit of

Vietnam national team

with the total score of the first game tied 2-2 at the home of the Golden Star Army

In this game, the Thai national team scored the first goal in the 24th minute from a right-hand shot from Theerathon Bunmathan.

Causing the end of the first half to lead 1-0, in the second half, Vietnam came out of the plan, but could not score an equalizer goal, however, Peeradon Chamrasamee, with a second yellow card, was expelled from the field in the 90th + 4th minute, but it was not effective.

At the end of the game, Thailand won with a score of 1-0, resulting in a total of 2 matches, winning with a score of 3-2, successfully winning the ASEAN Cup 2022 and becoming the 7th champion of the Thai national team, while Vietnam was the second runner-up. Continued from 1998