|KT A||MakNooN, Lila, Climax and Sharkbari join KT Rolster A while Vitamin, Hiro and Me5 leave. KaKAO moves to KT Rolster B|
|EUWCS||Heimerdingers Colossi Dongsquad in EUW Challenger Series Week 6 Cup|
|NJ SWD||MaKNooN leaves NaJin Sword.|
|EMS||Anexis eSports MeetYourMakers GamingGear.eu in EMS Spring 2013 Nordic & East|
|RYL||Tabe rejoins Royal Club Huang Zu.|
|Riot||Korea Champions China LPL Garena Team North America LCS in All-Star Shanghai 2013|
|CLG||Nientonsoh joins Counter Logic Gaming as new starting Top lane, Chauster moves to Support, bigfatlp moves to starting Jungle, HotshotGG moves to substitute/Coaching role, and Aphromoo leaves.|
|Anexis||eRot1c leaves Anexis eSports.|
|TeSL||TeSL Teams make mid-season adjustments.|
Yaumo is released from Gamania Bears.
Kukuku & ulRD are released from Wayi Spider.
Clurinus is released from yoe IRONMEN.
president & CatLatte are released from e-Sports Dragons Pro.
|EUWCS||Heimerdingers Colossi peculiar gaming in EUW Challenger Series Week 5 Cup|
|C9||Previous Quantic Gaming roster of Balls, Meteos, Hai, SnEaKyCaStRoO, and LemonNation leave the organization and reforms Cloud 9.|
|NiP||Ninjas in Pyjamas acquires the previous roster of Copenhagen Wolves.|
Bjergsen, Deficio, TheTess, Svenskeren and GodBro join.
|EP||MagicWindom leaves Energy Pacemaker.|
|WS||Wayi Spider China disbands. |
BSYY, Easy, Leaf, Jun, Leon and Fan are released.
|NGF||Team WE Royal Club Huang Zu Taipei Assassins in NVIDIA Game Festival 2013|
|d UK||Team Dignitas aquires the roster of British Tea Time.|
NitriX, Impaler, CookMySock, SmokeyLemon and Yerrow join.
|Riot||Patch v3.07 is released.|
|TCM||Brokenshard joins TCM-Gaming.|
|DB||YamatoCannon and Malunoo leave DragonBorns.|
|LCS||Quantic Gaming, Velocity eSports, Team Dignitas, and Counter Logic Gaming qualify for the Season 3 North American Summer Season|
|MRN||Team MRN disbands. Megazero, ClakeyD, ecco, Nientonsoh, Heartbeat, AtomicN and Cruzerthebruzer are released.|
|CLA||compLexity acquire the roster of Armata Gaming as an Academy team. Sarasun, Veelox, Dragonrouge, Doomtrobo, and Zhanos join.|
|CW||Previous Copenhagen Wolves roster departs from the organisation. TheTess, Bjergsen, Godbro, Svenskeren, Deficio, and cowTard leave.|
|LCS||MeetYourMakers, Team ALTERNATE, Sinners Never Sleep, and Copenhagen Wolves qualify for the Season 3 European Summer Season|
|ahq.KR||ahq e-Sports Club releases the roster of their Korean squad.|
|mouz||mousesports acquires the roster of Dexter is actually evil. Kikis, dexter1, Moopz, foo sharp, and AoD join.|
|DB||Brokenshard and Spontexx leave DragonBorns.|