2015 The 2015 Mid-Season Invitational was held from 7–10 May 2015 in
Tallahassee, Florida. Five teams qualified to participate at the Mid-Season Invitational after winning the Spring Split within their own regional leagues, while a team from the Wildcard regions qualified by winning the Mid-Season International Wildcard Invitational (IWCI). All games of the tournament were hosted in the
Donald L. Tucker Civic Center. The final was played on 10 May 2015 between
Edward Gaming, from China's
League of Legends Pro League, and
SK Telecom T1, from
League of Legends Champions Korea, with Edward Gaming winning the inaugural championship 3–2.
2016 The 2016 Mid-Season Invitational was held from 4–15 May 2016 in Shanghai, China. In line with last years iteration, 5 teams qualified to participate at the Mid-Season Invitational after winning the Spring Split within their own regional leagues, while a team from the Wildcard regions qualified by winning the Mid-Season International Wildcard Invitational (IWCI). All games of the tournament were hosted in the
Shanghai Oriental Sports Center. The final was played on 10 May 2016 between
Counter Logic Gaming, from the
North American League of Legends Championship Series, and
SK Telecom T1, from
League of Legends Champions Korea, with SK Telecom T1 winning the championship 3–0.
Lee "Faker" Sang-hyeok was awarded the MVP in the final.
2017 The 2017 Mid-Season Invitation was held from 28 April to 21 May 2017, in two Brazilian cities: São Paulo (play in) and Rio de Janeiro (groups and knockout stage). Departing from the previous years, thirteen teams qualified for the event by winning their respective Spring Splits, with the representatives from Europe (EU LCS), South Korea (
LCK), and China (
LPL) had their teams automatically admitted into the main event, while the other teams were admitted into the "play-in stage", where the top three teams in that stage qualified for the group stage. The final was played on 21 May 2017, hosted in the
Jeunesse Arena, between defending champions
SK Telecom T1, from South Korea's
League of Legends Champions Korea, and
G2 Esports, from the
European League of Legends Championship Series, with SK Telecom T1 retaining the championship 3–1, becoming the first team to win back-to-back Mid-Season Invitationals. Lee "Wolf" Jae-wan was awarded the MVP in the finals.
2018 The 2018 Mid-Season Invitational was held between 3–20 May 2018 in Germany and France. The two cities that hosted this event were Berlin (play-in and groups), and Paris (knockout stage). Fourteen teams qualified after winning their respective Spring Splits, with the teams from South Korea (
LCK), North America (
NA LCS) and China (
LPL) automatically seeded into the group stage, whereas the other 10 leagues will compete among each other in a "play-in" with the top 2 teams advancing to join the main event. The final was played on 20 May 2018, hosted in the
Zénith Paris, between
King-Zone DragonX, from South Korea's
League of Legends Champions Korea, and
Royal Never Give Up, from China's
League of Legends Pro League, with Royal Never Give Up winning the championship 3–1, with Jian "Uzi" Zihao being awarded the MVP of the finals. The finals, became one of the most watched
esports matches in history, being watched by over 127 million unique viewers (mostly attributed to China's viewership), while the entire event boasted a total viewing time of over 2 billion hours.
2019 The 2019 Mid-Season Invitational was held between 1–19 May 2019 in Vietnam and Taiwan. Three cities that hosted this event were Ho Chi Minh City (play-in), Hanoi (groups), and Taipei (knockout stage). Similar to the
2017 Mid-Season Invitational, thirteen teams qualified for the event, as based on the regional results of the 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. The final was played on 19 May 2019, hosted in the
Taipei Heping Basketball Gymnasium, between
G2 Esports, from Europe's
League of Legends European Championship, and
Team Liquid, from North America's
League of Legends Championship Series, with G2 Esports winning the championship 3–0, becoming the first European team to win the Mid-Season Invitational.
Rasmus "Caps" Winther was given the MVP award for his performance in the final.
2020 Due to the
COVID-19 pandemic, Riot Games cancelled the event, replacing it with the
Mid-Season Streamathon, a series of international competitions and exhibition matches from multiple regions.
2021 The 2021 Mid-Season Invitational was held from 6–23 May 2021 in
Reykjavík, Iceland. Twelve teams qualified for the event, where all teams began in the same stage of the tournament, unlike previous years where the winners of the minor leagues had to win play-in matches to face teams from the larger regions.
GAM Esports, from the
Vietnam Championship Series, was unable to attend the event due to travel restrictions related to the
COVID-19 pandemic. All games of the tournament were hosted in the
Laugardalshöll, with no fans in attendance due to the
COVID-19 pandemic in Iceland. The final was played on 23 May 2021 between the
2018 Mid-Season Invitational champions
Royal Never Give Up, from China's
League of Legends Pro League, and the
defending World champions DWG KIA (formerly Damwon Gaming), from
League of Legends Champions Korea. Royal Never Give Up won the championship 3–2, becoming the second team after
T1 (formerly SK Telecom T1) to win two Mid-Season Invitationals. Chen "GALA" Wei was awarded the MVP in the final.
2022 The 2022 Mid-Season Invitational was held from 10–29 May 2022 in
Busan, South Korea. Similar to the previous event, eleven teams qualified for the event, where all teams began in the same stage of the tournament, unlike previous years where the winners of the minor leagues had to win play-in matches to face teams from the larger regions. The
CIS's
League of Legends Continental League was unable to send a representative to the event due to the cancellation of their Spring Split, in response to the
Russian invasion of Ukraine. Due to travel restrictions related to the
COVID-19 pandemic in Shanghai, where most of China's LPL teams are based, the LPL representative,
Royal Never Give Up had competed in the tournament remotely from the team's training facility or the LPL Arena in Shanghai. All other representatives competed with artificially standardized
ping to ensure competitive integrity. The final was played on 29 May 2022, hosted in the
Busan Exhibition and Convention Center (BEXCO). The series was played between the two most successful teams in the competition's history at the time, the defending champions
Royal Never Give Up, from China's
League of Legends Pro League, and
T1, from
League of Legends Champions Korea. In the final, Royal Never Give Up won the championship 3–2, becoming the first team to win three MSI titles, and the second team to successfully defend their title (after T1 in
2017). Yan "Wei" Yangwei was awarded the MVP for his performance in the final.
2023 The 2023 Mid-Season Invitational was held from 2–21 May 2023 in London, United Kingdom. Thirteen teams from nine regions qualified for the event as champions of their regional Spring splits, excluding North America (LCS), EMEA (
Europe, the Middle East and Africa), Korea (LCK), and China (LPL), who each had two teams participate in the tournament. As a result of this change, the Spring Split champions from Turkey (TCL) and Oceania (LCO) no longer participated in the event due to the Turkish league losing their regional status to become a European Regional League (ERL), and the Oceania league merging under the Southeast Asian
Pacific Championship Series (PCS). The format for the event differed to the previous editions, with the introduction of a play-in stage, consisting of eight teams who are split into two double elimination brackets. There, three teams qualified to the main tournament bracket where the qualifying teams, along with five other teams, faced off in another double elimination bracket to determine the winner of the tournament. All games of the tournament were hosted in the
Copper Box Arena. The finals was played on 21 May 2023 between
JD Gaming and
Bilibili Gaming, both from the
League of Legends Pro League (LPL). In the final, JD Gaming won the series 3–1, with Zhuo "knight" Ding being named the finals MVP of the tournament.
2024 The 2024 Mid-Season Invitational was held from 1–19 May 2024 at the Chengdu Financial City Performing Arts Center in
Chengdu, China. Twelve teams from eight regions qualified for the event, with Japan's
LJL merging under the
Pacific Championship Series (PCS). The finals was played on 19 May 2024 between
Gen.G from the
League of Legends Champions Korea (LCK), and the previous years' finalist
Bilibili Gaming from the
League of Legends Pro League (LPL), a rematch of the upper bracket final between the two teams. In the final, Gen.G won the series 3–1, becoming the second team from the LCK (after
T1) to win an MSI title, whilst marking the first time a non-LPL (Chinese) team has won after five consecutive years of prior Chinese winners. Son "Lehends" Si-woo was awarded the finals MVP for his performance in the series.
2025 It was announced during the broadcast of the
2024 League of Legends World Championship final that MSI would take place in
Canada in 2025, marking the country's first hosting of an international
League of Legends competition.
Vancouver was announced as the host city on 8 January 2025, with the
Pacific Coliseum as the main venue. From this edition onwards, the team representing the winning region at the
First Stand Tournament would give its region's two qualified teams a bye to the Bracket Stage. Since
Hanwha Life Esports won the
inaugural edition, the
LCK would get two automatic byes to the Bracket Stage, skipping the Play-in Stage entirely. All games of the tournament were best-of-fives and were played at the
Pacific Coliseum. Out of the 19 best-of-five series played, nine (9) reached a fifth and deciding game, setting the record for the most number of Game 5s in any international
League of Legends competition, surpassing the six (6) Game 5s during the
2021 League of Legends World Championship. The tournament was also the first edition of the tournament to feature the Fearless Draft format, where teams cannot pick a champion that they've already played in a series, even if the opposing team already picked that champion. The final was played on 12 July 2025 between
defending MSI champions Gen.G and
defending world champions T1, both from the
League of Legends Champions Korea (LCK), a rematch of the upper bracket final between the two teams. Gen.G won the series, 3–2, becoming the third team to win back-to-back MSI titles after
T1 (then-SK Telecom T1) in
2016 and
2017, and
Royal Never Give Up in
2021 and
2022. With the victory,
Gen.G also qualified for the
2025 League of Legends World Championship provided it reaches the
playoffs of the 2025 LCK season, which was certified on 23 July 2025.
2026 On 8 January 2025, Riot Games initially announced that the 2026 edition of MSI would be held in South Korea, marking the first time since
2022 that South Korea will host the event.
2027 On 8 January 2025, Riot Games announced that the 2027 edition of MSI would be held in Europe. ==Results==