2015 Mid-Season Invitational

The 2015 Mid-Season Invitational is the first event of the Mid-Season Invitational (MSI) – a League of Legends tournament organized by publisher Riot Games that was held after Spring Season, from May 7–10, 2015 at the Florida State University Donald L. Tucker Civic Center in Tallahassee, Florida. The participants is 6 winner teams of the Spring Season: 5 teams from North America (NA LCS), Europe (EU LCS), China (LPL), South Korea (LCK), Taiwan/Hong Kong/Macau (LMS) and a team from Wildcard regions (Brazil, CIS, Japan, Latin America, Oceania, Southeast Asia) that won the Mid-Season International Wildcard Invitational (IWCI).

EDward Gaming from China won the first ever MSI title after defeating SK Telecom T1 from South Korea 3–2 at the final.

Venue
Tallahassee was the city chosen to host the competition.

Group stage

 * Single Round Robin, all matches are Best-of-one.
 * Top 4 teams advance to Knock-out Stage.

Knock-out stage

 * The 1st-place team plays with the 4th-place team, The 2nd-place team plays with the 3rd-place team in semifinals.
 * All matches are Best-of-five.