The 2021–22 Thai League Cup is the 12th season in the second era of a Thailand's knockout football competition. All games are played as a single match. It was sponsored by Toyota Motor Thailand, and known as the Hilux Revo League Cup (Thai: ไฮลักซ์ รีโว่ ลีกคัพ) for sponsorship purposes, Hilux Revo is a truck model of Toyota. 75 clubs were accepted into the tournament, and it began with the first qualification round on 13 October 2021 and concluded with the final on 29 May 2022. The tournament has been readmitted back into Thai football after a 10-year absence. The prize money for this prestigious award is said to be around 5 million baht and the runners-up will be netting 1 million baht.
This is the first edition of the competition and the qualifying round will be played in regions featuring clubs from the Thai League 3.
There were 14 clubs from 2021–22 Thai League 3 have signed to first qualifying in the 2021–22 Thai League cup. This round had drawn on 28 September 2021.[1] There are 21 goals that occurred in this round.
The second qualifying round would be featured 7 clubs that were the winners of the first qualification round[2] and the new entries that were 33 clubs from the 2021–22 Thai League 3. There are 67 goals that occurred in this round.
The qualification play-off round would be featured 20 clubs that were the winners of the second qualification round[3] and the new entries that were 12 clubs from the 2021–22 Thai League 2. This round had drawn on 21 October 2021.[4] There are 63 goals that occurred in this round.
The first round would be featured 16 clubs that were the winners of the qualification play-off round including 8 clubs from T2 and 8 clubs from T3[5] and the new entries that were 16 clubs from the 2021–22 Thai League 1. This round had drawn on 8 December 2021.[6] There are 44 goals that occurred in this round.
The second round would be featured 16 clubs that were the winners of the first round including 12 clubs from T1, 1 club from T2, and 3 clubs from T3.[7] This round had drawn on 18 January 2022.[8] There are 27 goals that occurred in this round.
The quarter-finals would be featured 8 clubs that were the winners of the second round including 7 clubs from T1 and 1 club from T3.[9] This round had drawn on 15 February 2022.[10] There are 12 goals that occurred in this round.
The semi-finals would be featured 4 clubs that were the winners of the quarter-finals, all are clubs from T1.[11] This round had drawn on 5 April 2022.[12] There are 2 goals that occurred in this round.
The final would be featured 2 clubs that were the winners of the semi-finals, both are clubs from T1.[13] There are 4 goals that occurred in this round.