Each of the 13 premier League of Legends leagues sent a team to represent them; Europe (LEC), South Korea (LCK) and China (LPL) had their teams automatically admitted into the main event whereas the other 10 leagues competed among each other in the Play-in Stage, with the top three teams advancing to join the main event Group Stage.[1][2]
"Bring Home The Glory" was the tournament's theme song, put together by Sara Skinner.[3]
G2 Esports from Europe defeated Team Liquid from North America 3–0 in the final and brought the region its first MSI championship.
Qualified teams
The total number of participating regions decreased in 2019, from 14 last year to 13, due to the merger of two professional leagues, the North (LLN) and the South (CLS) of Latin America into a single league (LLA). The format was based on the 2017 Mid-Season Invitational.
Because of the Regional success in MSI and the World Championship in the two years prior (2017 and 2018), three teams from Europe (LEC), South Korea (LCK), and China (LPL) began in the main Group stage; two teams from North America (LCS) and Taiwan/Hong Kong/Macau (LMS) begin in the second round of the play-in stage; and the eight remaining teams begin in the first round of the play-in stage. Losing teams in the second round will play in a third final main group stage qualifying round.
Team Liquid plays against Group A 1st-place. Flash Wolves plays against Group B 1st-place. Winners of the series advance to Group stage. Losers will be dropped to Round 3.
Winner of the series advances to Group stage. Loser is eliminated.