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| April 30 | ||
|---|---|---|
 MAD | Borraskka (Content Creator), CRIPER (Content Creator), Galgo96 (Content Creator), peLukaa (Streamer), rafafilmaker (Content Creator), and Xaxe (Streamer) join. | |
  Mav3ricks Gaming Club   Clarity Esports in the EEG Stream Mansion Championship 2021. | ||
| Dingers Dominion jawn in the NYSL Power Players Proving Grounds 2021 Season 1 Playoffs. | ||
| Chewligan TheUnkillables in the UMG Gaming Prime $1000 2v2 Search & Destroy 2021-04-30. | ||
| April 30 (approx.) | ||
 MAF | Strict leaves. | |
| April 29 | ||
eFuse | Newbz & ScummN Aydan & Rated in the EFuse TeeP's Trials. | |
 OBT | Aroma, Detain, Genesis, and Peatie leave. | |
 TDP | Glaaix leaves. | |
 MIN | Blazt (Content Creator) joins. | |
| April 28 | ||
 LDN | Zer0 and Dominate (Head Coach) leave. | |
| April 27 (approx.) | ||
 MW | Bink, Colinnator, Hitmxn, and Reaper leave. | |
| April 27 | ||
| Team Tommey Team Aydan in the Twitch Rivals Warzone Season 3 Showdown NA. | ||
| Team Allrounder Team CPentagon in the Twitch Rivals Warzone Season 3 Showdown EMEA. | ||
 NY | gursh (Social Media Coordinator) joins. | |
| April 26 | ||
| Jukeyz & Fifakill Rated & Aydan in the BoomTV Code Red 2021-04-26. | ||
 VTN | Hyzzn joins. | |
 AML | Arian (Analyst) leaves. | |
 GSK | Blade (Streamer) joins. | |
| April 25 | ||
 Team Smog  Shorys Gaming in the MML Division Elite 2021 Season 1 Playoffs. | ||
 UYU N3MO in the Call of Duty Challengers 2021 Cup #12 North America. | ||
 Orgless  Elevate in the Call of Duty Challengers 2021 Cup #12 Europe. | ||
 Renegades  Mindfreak in the Call of Duty Challengers 2021 Cup #12 Asia Pacific. | ||
| CuteMole6301 yermxgwinn in the CheckMate Gaming Elite $500 2v2 S&D 2021-04-25. | ||
| RightFox3084 HeftyHummingbird2511 in the CheckMate Gaming Elite Europe $500 2v2 S&D 2021-04-25. | ||
 SMOG | Clamp leaves. | |
| April 24 | ||
| LMAO Lil Bill in the UMG Gaming Prime $1000 3v3 Search & Destroy 2021-04-24. | ||
| NY | HyDra moves to starting roster. Diamondcon moves to substitute. | |
 RVNS | Eleven and Jonny join. Divvxll rejoins. | |
| April 23 | ||
 TH | Vikul joins. | |
 LAG A | Maux joins. | |
 UG | Viiox (Coach) joins. | |
| Recrent & Ubica Testy & Jukeyz in the Atlanta FaZe 50K Global Cash Grab. | ||
 EvL | Shady (Analyst) joins. | |
| April 22 | ||
 EstR | Sib is loaned from ATL FaZe. | |
 ATL | Sib is loaned to EastR. | |
 DAL | FeLo moves to starting roster. Huke moves to substitute. | |
| DAL | FeLo returns from loan to EastR. | |
| EstR | FeLo's loan from DAL Empire ends. | |
| VTN | Pepitas retires. | |
 QLS | PuNi retires. | |
| QLS | Fussion leaves. | |
| TH | TwizZah leaves. | |
| April 21 | ||
 Team Agarthas qualifies for the Blink Battleground 2021 Midseason Event. | ||
BLNK | Team Agarthas  Masters Ecuador in the Blink Battleground 2021 Midseason Event LCQ. | |
| EstR | Karsen (Analyst) and Pottsea (Analyst) join. | |
| TH | Pottsea (Analyst) leaves. | |
| ATL | x2Pac ThuGLorD (Analyst) joins. | |
 UYU | Whiz joins. Maux leaves. | |
| LAG | Cheen moves to starting roster. Vivid moves to substitute. | |
| LAG A | Cheen leaves for main roster. | |
 F4 | Fire joins. Davpadie leaves. | |
| April 20 | ||
 ZYG | Team signs roster of  Nativos Latinos. Cheto, Fish, Kimwax, nVoi, Raven, Tetillo, and Paludi (Manager) join. | |
 NL | Roster is signed by  Zygnus Esports. Cheto, Fish, Kimwax, nVoi, Raven, Tetillo, and Paludi (Manager) leave. | |
 CR | Melko joins. Lukas leaves. | |
| AMLB | Team renames from  Amelia Strays. FeleXY, Manue, Sharhy, and Sysma join. | |
| AML | Chaaxter, NukeJ, Watson, and Arian (Analyst) join. Piero rejoins. | |
| AML | Roster becomes Amelia Strays Black. FeleXY, Manue, Sharhy, and Sysma leave. | |
 TALY | Colombo, Kraven, NanZ, and Reivax join. | |
| April 19 | ||
 SKDE | Fal and Leozin join. JoKeR leaves. | |
 INF | Leozin leaves. | |
| NY | HyDra returns from loan to Subliners Academy. | |
| NYA | Hamza rejoins. HyDra's loan from NY Subliners ends. | |
| Call of Duty League Ruleset v1.4 is released. | ||
| LDN | Zaptius joins. Dylan moves to substitute. | |
 WstR | Zaptius leaves. | |
| MAF | Kraven and Reivax leave. | |
 KING | Lynz and Nadox join. Abuzah and Melko leave. | |
| ORGL | LewTee (Coach) joins. | |
 Z7 | DreeyK (Warzone Player), Getway (Warzone Player), and LuKinas (Warzone Player) leave. | |
| April 18 (approx.) | ||
| CONN | Joee, Linney, Nolson, and Wardy leave. | |
| April 18 | ||
 NUX | Breszy, D3L1V3R, Depaa, and Hosterz leave. | |
 F/A | MethodZ retires. | |
 Ottawa Uni. Gold Ottawa Uni. Black in the College CoD 2021 Playoffs. | ||
| Team Smog Team Agarthas in the Ultimate Mexican League 2021 Season 2 Playoffs. | ||
| April 17 | ||
| CR | FDzE joins. Toki leaves. | |
| Booron UMGChewyTyme in the UMG Gaming Prime $1000 2v2 Search & Destroy 2021-04-17. | ||
 Triumph, uT Crew, here to ruin someones weekend, and  LAG Academy qualify for Call of Duty Challengers 2021 Elite North America Stage 3. | ||
Mav3ricks Gaming Club, Team Watson,  Team 3G, and  Pushing Gaming qualify for Call of Duty Challengers 2021 Elite Europe Stage 3. | ||
 3G | Beans, Keza, KidzZ, and Niall join. | |
| QLS | Vikul leaves. | |
| NYA | Denz (Coach) joins. | |
| April 16 | ||
| NUX | Breszy, D3L1V3R, Depaa, and Hosterz join. | |
| OBT | Detain joins. | |
| Call of Duty League 2021 - Stage 3 groups and schedule revealed. | ||
| SUPR | Doomset, Doty, GuSilva, and ohWayK join. | |
| April 15 | ||
| TH | Conny (Coach) and Magxck (Coach) join. | |
 RUSH | Team is sponsored by ASTRO Gaming. | |
 FLA | Havok moves to starting roster. | |
Mav3ricks Gaming Club  QLASH in the NGL 2021 Dream Tournament 1. | ||
| WstR | Fire, Jintroid, and Parasite leave. | |
| April 15 (approx.) | ||
 SW | ShadizT leaves. | |
| April 14 | ||
 T1 | CanYou and JongBok leave. | |
| Shorys Gaming Team Smog in the Blink Battleground 2021 Open 3. | ||
 HYXR | Team ceases operations. Hollow, Proto, Ulisses, Zinx, and Gunna (Coach) leave. | |
| F/A | LewTee retires. | |
| OBT | Breszy leaves. | |
| Call of Duty Mobile World Championship 2021 is announced. | ||
| Call of Duty League announces that select events will return to LAN later this season. | ||
| April 13 | ||
| F4 | Davpadie joins. Slacked is loaned from FLA Mutineers. | |
| FLA | Slacked is loaned to Fantastic Four. | |
| uTC | Yeez rejoins. MajorManiak is loaned from MIN RØKKR. Mind and Whiz leave. | |
| ATL | Sib returns from loan to Fantastic Four. | |
| F4 | Yeez leaves. Sib's loan from ATL FaZe ends. | |
| MIN | MajorManiak is loaned to uT Crew. | |
| WstR | Fire joins. Hamza leaves. | |
 PAR | Temp joins. | |
 LAT | Temp leaves. | |
| PAR | Fire leaves. | |
 ELV | Rusto (Director of Esports) joins. | |
| April 12 | ||
 VOID | Immense joins. Stocka leaves. | |
 VIK | Alkazah, Imagine, Immense, and JamesJHR leave. | |
| MAF | AleLemes, Kraven, Reivax, and Strict join. | |
 NexT | Bryz, Burny, Flushing, and Stun3x join. | |
 4LF4 | Martino joins. | |
| April 11 | ||
 TRB | Vague joins. | |
| FLA | Slacked moves to substitute. | |
| Bance is awarded the Call of Duty League 2021 - Stage 2 Player of the Stage. | ||
 Toronto Ultra  Atlanta FaZe in the Call of Duty League 2021 - Stage 2 Major. | ||
Triumph  Built by Gamers in the Call of Duty Challengers 2021 Open #2 North America. | ||
| Elevate Orgless in the Call of Duty Challengers 2021 Open #2 Europe. | ||
Renegades  VOID in the Call of Duty Challengers 2021 Open #2 Asia Pacific. | ||
Ottawa Uni. Gold  Concord University in the Call of Duty Collegiate 2021 Playoffs. | ||
| CHEWtyme StiffMammoth4583 in the CheckMate Gaming Elite $500 2v2 S&D 2021-04-11. | ||
| RightFox3084 XabiAlonso in the CheckMate Gaming Elite Europe $500 2v2 S&D 2021-04-11. | ||
 Libalent Vertex  CYCLOPS athlete gaming in the PlayStation Japan Pro League 2021 Spring Finals. | ||
| Z7 | Crawly and Feezin join. | |
 UDOG$ | Archivies, MazDaH, Porto, and Soldier join. | |
 NK | Havok, iFlutz, Rafacreed, and Torturih join. | |
| April 10 | ||
 TRI | Xotic joins. | |
| HYXR | Proto and Ulisses join. Xotic leaves. | |
| TRI | Proto leaves. | |
| UG | Charm joins. Censor leaves. | |
 WaR | Team signs roster of Los Galacticos. envdiaN, JurNii, Lucky, and MettalZ join. | |
| LOS | Roster is signed by  Team WaR. envdiaN, JurNii, Lucky, and MettalZ leave. | |
 DOG$ | Ninnja and Sheed join. Dirty and FaKeZ rejoin. | |
| Z7 | Sheed leaves. | |
 FR9x | Furiious, Grad, Hawqeh, Rafi, JayJay (Coach), and AlexGiry (Manager) join. | |
 FTW | KidzZ leaves. | |
| April 10 (approx.) | ||
| CR | Lukas joins. Divxl leaves. | |
| UYU | Faded (Coach) joins. | |
| April 9 | ||
| DOG$ | Lebot (Coach) joins. | |
| ELV | Team signs roster of Passion. Bidz, Denza, Hicksy, Weeman, and DREAL (Coach) join. | |
| PASS | Roster is signed by Elevate. Bidz, Denza, Hicksy, Weeman, and DREAL (Coach) leave. | |
| April 8 | ||
| NoiZ Dark Los Mejores del Mundo in the Autentii Esports League 2021 Season 1 Playoffs. | ||
| DOG$ | Mirolla leaves. | |
 A5 | Dylan leaves. | |
| April 7 | ||
| KING | Abuzah, Melko, and Staan join. D3L1V3R, Depaa, and Hosterz leave. | |
 AA | Hate, JuJu, Ulisses, and Rodrsteven (Coach) leave. | |
| LAT | CouRage (Co-Owner) and Valkyrae (Co-Owner) join. | |
 100T | CouRage (Content Creator to Content Creator/Co-Owner) and Valkyrae (Content Creator to Content Creator/Co-Owner) change positions. | |
 GHC | Kohvz, Levcitys, Lithium, and Rahil join. | |
| April 6 | ||
| F4 | Yeez joins. Methodz is loaned from TOR Ultra. Davpadie leaves. | |
 TOR | Methodz is loaned to Fantastic Four. | |
| FLA | LEGIQN (Content Creator) joins. | |
| UYU | Maux and Wellyy join. | |
| HYXR | Maux leaves. | |
| AA | Wellyy leaves. | |
| April 5 | ||
| LAT | Temp returns from loan to WestR. | |
| WstR | Jintroid joins. Temp's loan from LA Thieves ends. | |
| LAT | Drazah moves to starting roster. SlasheR moves to substitute. | |
| LAT | Drazah returns from loan to Fantastic Four. | |
| F4 | Drazah's loan from LA Thieves ends. | |
| TOR | Methodz returns from loan to WestR. | |
| WstR | Parasite rejoins. Methodz's loan from TOR Ultra ends. | |
 ENVY | TeeP (Content Creator) joins. | |
 VrT | Neewz joins. | |
| uTC | Mind, Whiz, and 7omm1 (Coach) join. Jintroid and Yeez leave. | |
| UYU | Mind, Whiz, and 7omm1 (Coach) leave. | |
| April 4 | ||
 SHY | Ruper joins. | |
 AGT | Ruper leaves. | |
 Creative Gaming  SiX Gaming in the Costarican League 2021 Season 1 Playoffs. | ||
 Astro.1s1k  DG Esports in the Garena Invitational 2021. | ||
| TDP | Nacho (Coach) joins. | |
| April 4 (approx.) | ||
| CONN | Wardy joins. | |
| April 3 | ||
| TH | Dqvee and TwizZah join. Detain and Keza leave. | |
| CONN | Dqvee leaves. | |
| WstR | Methodz is loaned from TOR Ultra. Parasite leaves. | |
| TOR | Methodz is loaned to WestR. | |
| April 2 | ||
 MV3 | EriKBooM, SupeR, and YaKo join. | |
| VTN | Aether, GagonsY, Pepitas, and Xpiry join. | |
| April 1 | ||
| EstR | Newb (Assistant Coach) and Mystvc (Analyst) join. | |
| ATL | Sibilants renames to Sib. | |
| QLS | Vikul joins. Fussion rejoins. | |
| Z7 | DreeyK (Warzone Player), Getway (Warzone Player), and LuKinas (Warzone Player) join. | |
