Calendar of events
 |
(for extended events the final date is listed)
| Date | Game | Event | Location | Winner/s |
|---|---|---|---|---|
| January 6 | Dota 2 | i-League Season 2 | China | LGD Gaming |
| January 9–11 | Smite | Smite World Championship | Cobb Energy Performing Arts Center Atlanta, Georgia, US | COGnitive Prime |
| January 30–February 1 | Super Smash Bros. series numerous games | Apex 2015 | Garden State Convention Center Somerset, New Jersey, US | SuPeRbOoMfAn (Smash 64) PPMD (Melee) Ally (Brawl) ZeRo (Smash 4) |
| February 24–October 6 | iRacing.com | NASCAR Peak Antifreeze Series | Online | Kenny Humpe [1] |
| February 1–March 27 | Dota 2 | Major All Stars Dota 2 Tournament finals | Kuala Lumpur | Invictus Gaming |
| February 9 | Dota 2 | Dota 2 Asia Championships | Shanghai, China | Evil Geniuses |
| March 1 | World of Tanks | Wargaming.net EU Gold Series Season 5 Finals | Sofia, Bulgaria | Kazna Kru |
| March 8 | Halo 2: Anniversary | Halo Championship Series (HCS) Season 1 Finals (PAX East 2015) | Boston, Massachusetts | Evil Geniuses |
| March 15 | StarCraft II League of Legends | Intel Extreme Masters (IEM) Season IX Katowice | Katowice, Poland | SC2: Zest LoL: Team SoloMid |
| March 15 | Counter-Strike: Global Offensive | Electronic Sports League (ESL) One Katowice | Katowice | fnatic |
| March 27–29 | Call of Duty: Advanced Warfare | Major League Gaming Call of Duty Championship | Los Angeles, California, US | Denial eSports |
| March 29 | Counter-Strike: Global Offensive | Star Ladder StarSeries Season XII | Kyiv, Ukraine | Ninjas in Pyjamas |
| April 5 | StarCraft II | 2015 StarCraft II World Championship Series (WCS) Season 1 | France | Polt |
| April 6 | League of Legends | Vietnam Championship Series (VCS) Spring 2015 | Vietnam (online) | Saigon Fantastic Five |
| April 6 | numerous games | Gamers Assembly | Poitiers | (see article) |
| April 8 | League of Legends | Challenger Series Spring Finals | Los Angeles | Enemy eSports |
| April 9 | League of Legends | Tencent LoL Secondary Pro League 2015 Spring Finals | China | Qiao Gu |
| April 12 | Dota 2 | joinDOTA MLG Pro League Season 1 | Columbus, Ohio | Team Empire |
| April 12 | League of Legends | Garena Premier League (GPL) Spring 2015 | Vietnam National Convention Center Từ Liêm, Hanoi | Saigon Fantastic 5 |
| April 11–26 | Heroes of the Storm | Heroes of the Dorm | Shrine Auditorium Los Angeles | University of California, Berkeley |
| May 2–3 | Call of Duty: Advanced Warfare | Electronic Sports World Cup (ESWC 2015) | Zénith de Paris Paris, France | OpTic Gaming |
| July 17–19 | numerous fighting games | Evolution 2015 | Bally's / Paris Las Vegas Casino Las Vegas, Nevada, US | see main article |
| July ?-23 [2] | Halo 2: Anniversary [2] | Halo Championship Series (HCS) Season 2 Finals [2] | Burbank, California [2] | Evil Geniuses [2] |
| August 3–8 | Dota 2 | The International 2015 | KeyArena Seattle, Washington, US | Evil Geniuses |
| August 22–23 | Counter-Strike: Global Offensive | ESL One Cologne 2015 | Cologne, Germany | Fnatic |
| September 19–20 | Counter-Strike: Global Offensive Super Smash Bros. Melee | DreamHack London 2015 | London, England, United Kingdom | |
| September 19–20 | numerous games | DreamHack Stockholm 2015 | ||
| October 31 | League of Legends | League of Legends World Championship grand finals | Mercedes-Benz Arena Berlin, Germany | SK Telecom T1 |
| November 7 | Hearthstone: Heroes of Warcraft | Hearthstone World Championship 2015 | Anaheim, California | Sebastian "Ostkaka" Engwall [3] |
| November 26–29 | Numerous games | DreamHack Winter 2015 | Jönköping, Sweden | |
| December 2–5 | Hearthstone: Heroes of Warcraft League of Legends StarCraft II: Legacy of the Void | IeSF E-Sports World Championship 2015 | Seoul, South Korea | Team Serbia |
| December 4–6 | Crossfire | Crossfire Stars (CFS) 2015 Grand Finals | Guangzhou, China | HG.LongZhu |
| December 6 | Ultra Street Fighter IV | Capcom Cup 2015 | Moscone Center San Francisco, California, US | Kazunoko |
