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).