2022 Mid-Season Invitational

The 2022 Mid-Season Invitational was the seventh Mid-Season Invitational (MSI), a Riot Games–organised tournament for League of Legends, a multiplayer online battle arena video game. The tournament was the culmination of the 2022 Spring Split and the first interregional competition of Season 12.

11 of the 12 premier League of Legends leagues had a team representing them; the LCL was not participating due to the Spring Split being cancelled as a result of the 2022 Russian invasion of Ukraine. The competition continued the same format that was introduced during MSI 2021. The minimum prize pool was US$250,000.

"Set It Off" was the tournament's theme song, put together by DPR Live, and DPR Cline.

The tournament was hosted in Busan, South Korea, from 10 to 29 May 2022. The Group Stage was held in the Busan Esports Arena, while the Rumble Stage and Knockout Stage was held in the Busan Exhibition and Convention Center (BEXCO) Exhibition Hall 1 in Busan. Due to COVID-19 pandemic in mainland China, the qualified team from LPL competed remotely from China, in the team's training facility.

Defending champion Royal Never Give Up from China defeated T1 from South Korea 3–2 in the final, winning their third MSI title.

Format
Teams from 11 regions competed in the Group Stage, the Rumble Stage, and the Knockout Stage, similar to the format used in the 2021 Mid-Season Invitational.

Group stage
All teams were drawn into three groups, with two of the groups having four teams and one group with three teams. All matches was a best-of-one double round robin.

Rumble Stage
The top two teams from each group competed in the Rumble Stage. The matches was a best-of-one double round robin.

Knockout stage
The top four teams advanced to the Knockout Stage. The matches was a best-of-one single elimination.

Qualified teams
Due to the ongoing Russian invasion of Ukraine, the LCL Spring Split had been cancelled, and the CIS region therefore could not participate in the tournament.

Venue
Busan was the city chosen to host the competition. The Group Stage was held at the Busan Esports Arena, while the Rumble Stage and Knockout Stage was held at the BEXCO.

Group stage

 * Date and time: 10–15 May, began at 17:00 KST (08:00 UTC)
 * Eleven teams were drawn into three groups, two groups of four and one group of three
 * Double round robin for Groups A and B, quadruple round robin for Group C; all matches were best-of-one
 * If two teams had the same win–loss record and head-to-head record, then a tiebreaker match would have been played
 * Top two teams advanced to the Rumble Stage; bottom two teams were eliminated


 * Group A


 * Group B


 * Group C

Rumble stage

 * Date and time: 20–24 May, begins at 15:00 KST (06:00 UTC)
 * Six teams played in a double round robin; matches were best-of-one
 * If teams had the same win–loss record and head-to-head record, then tiebreaker matches would have been played for first, second, and fourth place
 * Top four teams advanced to the Knockout Stage; bottom two teams were eliminated

Knockout stage

 * Date and time: 27–29 May, 17:00 KST (08:00 UTC)
 * Single elimination, matches are best-of-five
 * Top team from the Rumble Stage chose between 3rd and 4th to be their opponent and the day of play for the semifinals (RNG chose EG).

Ranking
(*) Not including tie-break games.