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| March 31 | ||
|---|---|---|
 UOL | Angelo, Blessed, Brinks, CGWell, Kenox, Neil, and Sauce join. | |
 Team Swagg  Team Jukeyz in the Los Angeles Guerrillas Gulag 25K. | ||
| Fantastic Four EastR in the Call of Duty Challengers 2021 Elite North America Stage 2 Playoffs. | ||
 Orgless Passion in the Call of Duty Challengers 2021 Elite Europe Stage 2 Playoffs. | ||
 Team Smog  Shorys Gaming in the Blink Battleground 2021 Open 2. | ||
| March 30 | ||
 F/A | Cells renames to Mock. | |
 WstR | GloFrosty renames to Hamza. | |
 VrT | Crawly leaves. | |
 AK | HeTor joins. | |
 RBT | BooM joins. | |
 BEN | BooM leaves. | |
 T1 | F10W3R leaves. | |
| March 30 (approx.) | ||
| AK | ExyLon leaves. | |
| March 29 | ||
 MOX | Blitz joins. | |
 4LF4 | Reivax leaves. | |
 NK | NiiXs leaves. | |
 PSH | Alfoon, Torress, and Zappy join. | |
| March 28 | ||
 Maycam Evolve  All Knights in the H3LL Tournaments 2021 Season 1 Playoffs. | ||
 DOG$ | Dirty and FaKeZ leave. | |
 7e | Blitz leaves. | |
 HYP | Soldier leaves. | |
 Subliners Academy Fantastic Four in the Call of Duty Challengers 2021 Cup #10 North America. | ||
| Passion WWRL in the Call of Duty Challengers 2021 Cup #10 Europe. | ||
 Chiefs Esports Club  VOID in the Call of Duty Challengers 2021 Cup #10 Asia Pacific. | ||
| March 27 | ||
Maycam Evolve  Royal Frog in the ArenaOn Série A 2021 Season 1 Playoffs. | ||
 Azure Esports  LITEM Reapers in the El Salvador eSports League 2021 Season 1 Playoffs. | ||
| DOG$ | Nuclear leaves. | |
 ZWN | Martino and Neewz leave. | |
 UG | Censor joins. | |
| March 27 (approx.) | ||
 CR | Divxl and Toki join. Dxsable leaves. | |
| March 26 | ||
 VIT | Argon, Death, Jokos, MonK, Moonscope, Sams, Toxy (Coach), and Mello (Manager) join. | |
 S8UL | Argon, Death, Jokos, MonK, Moonscope, Sams, Xenon, Toxy (Coach), and Mello (Manager) leave. | |
 OBT | Aroma, Breszy, Genesis, and Peatie join. | |
 ELI | Aroma leaves. | |
| NK | Doty leaves. | |
| March 25 (approx.) | ||
 LDN | Zer0 returns from loan to House Tarth. | |
 HT | Afro, Defrag, Gismo, and camallenn (Analyst) leave. Zer0's loan from LDN Royal Ravens ends. | |
| March 25 | ||
 IND | Team signs roster of  Team Mayhem. Broszxs, BurnZ, Learn, Neutrino, TrunKs, and VegaZ join. | |
 mYm | Roster is signed by  Insidious Esports. Broszxs, BurnZ, Learn, Neutrino, TrunKs, and VegaZ leave. | |
| March 23 | ||
 FaZe | Booya (Content Creator) joins. | |
 SOM | PeL8, Sorware, and Stirpeeh join. | |
 SW | Breiko and ShadizT join. | |
| March 22 | ||
 NL | Kimwax joins. | |
| WstR | Temp is loaned from LA Thieves. | |
 LAT | Temp is loaned to WestR. | |
 MIN | Standy joins. MajorManiak moves to substitute. | |
 F4 | Drazah is loaned from LA Thieves. Standy leaves. | |
| LAT | Drazah is loaned to Fantastic Four. | |
| LAT | Venom joins. Temp moves to substitute. | |
| WstR | Venom leaves. | |
 Wild | Nodish joins. | |
| NK | FKiNg leaves. | |
| March 22 (approx.) | ||
 RVNS | Izaac, JonnyW, and RunneR leave. | |
| March 21 | ||
 STMN | Tobi joins. | |
 OBT B | Abuzah, Melko, PraaX, and Staan leave. | |
 Project Gaming  Limitless Godz in the LDC Esports 2021 Spring Playoffs. | ||
 AML | Blade retires. | |
| AML | Predax retires. | |
| AML | FeleXY, Manue, Sharhy, and Sysma join. Piero and Wartex leave. | |
 EXG | Biso, Diixblo, Sharhy, and Sysma leave. | |
| Fantastic Four Subliners Academy in the Call of Duty Challengers 2021 Cup #9 North America. | ||
| Los Galacticos Passion in the Call of Duty Challengers 2021 Cup #9 Europe. | ||
 Renegades Chiefs Esports Club in the Call of Duty Challengers 2021 Cup #9 Asia Pacific. | ||
| March 20 | ||
 TRB | Forsaken and haxs join. | |
| UG | FA5TBALLA retires. | |
| F4 | Decemate joins. | |
| F4 | Jimbo is suspended for three months due to threatening violence. | |
| BEN | ShadizT leaves. | |
| March 19 | ||
 MW | Hitmxn and Reaper join. Clamp and Tyrannicide leave. | |
 TOR | Insight moves to starting roster. | |
| LOS | envdiaN, JurNii, Lucky, and MettalZ join. | |
 RAMS | Organization ceases operations. envdiaN, JurNii, Lucky, and MettalZ leave. | |
| Wild | HeTor leaves. | |
| March 18 | ||
 NRG | IceManIsaac (Content Creator) joins. | |
| AMLS | Alfoon and Zappy leave. | |
| 4LF4 | Dylan joins. Colombo leaves. | |
 HARD | Firi joins. Dark leaves. | |
| BEN | Nodish leaves. | |
 DooM | Fifakill (Content Creator) leaves. | |
| March 17 | ||
 MV3 | Vikul leaves. | |
 NY | Aydan (Content Creator) joins. | |
| March 16 | ||
 TH | Detain joins. | |
| NY.A | HyDra is loaned from NY Subliners. | |
| NY | HyDra is loaned to Subliners Academy. | |
| LDN | PaulEhx joins. | |
| March 15 (approx.) | ||
| MW | Hitmxn and Reaper leave. | |
| CR | Dxsable and RyBeams join. Lynz and Nadox leave. | |
| March 15 | ||
| OBT | BBConor, Callum, Chain, Hicksy, and JPDigits (Analyst) leave. | |
| NY | Kevin Durant (Investor) joins. | |
 HYXR | Hollow joins. | |
| WstR | Parasite joins. Decemate and PaulEhx leave. | |
| LDN | Parasite (temporary substitute) leaves. | |
| Call of Duty League Ruleset v1.3 is released. | ||
| March 14 | ||
| HYXR | Maux joins. Mayhem leaves. | |
| WstR | Decemate joins. | |
| March 13 | ||
 Arial Arise,  Built by Gamers, EastR, and Fantastic Four qualify for Call of Duty Challengers 2021 Elite North America Stage 2. | ||
| Team Moon, Passion, 67k, and ELITE 2 qualify for Call of Duty Challengers 2021 Elite Europe Stage 2. | ||
| PASS | Bidz, Denza, Hicksy, Weeman, DREAL (Coach), and Conny (Analyst) join. | |
 EstR | GRVTY, John, Jurd, and Fenix (Coach) join. FeLo is loaned from DAL Empire. | |
 DAL | FeLo is loaned to EastR. | |
| March 13 (approx.) | ||
| F4 | Davpadie, Jimbo, Standy, and VinnY (Coach) join. Sib is loaned from ATL FaZe. | |
 ATL | Sib is loaned to Fantastic Four. | |
 TRI | Mayhem and Proto join. Davpadie and Standy leave. | |
 AGT | Ruper joins. | |
 SMOG | Infinit joins. Ruper leaves. | |
| March 12 (approx.) | ||
| RVNS | Izaac, JonnyW, and RunneR join. | |
| March 12 | ||
 UYU | Cruze, Mind, Wand, Whiz, and 7omm1 (Coach) join. | |
| Garena Invitational 2021 first week of matches postponed. | ||
| Call of Duty League 2021 - Stage 2 groups and schedule revealed. | ||
| TOR | Wi5dom12 (General Manager) leaves. | |
| March 11 | ||
 BBG | Maux leaves. | |
| uTC | Jintroid, Phantomz, Wrecks, and Yeez rejoin. | |
| Shorys Gaming Team Smog in the Blink Battleground 2021 Open 1. | ||
| March 10 (approx.) | ||
 AZT | JonnyW leaves. | |
| March 10 | ||
| S8UL | Jokos and Sams join. | |
 AMT | Team signs roster of  Divinity.Uprising. Alep, Heaven, incendió, IrfanJ, and Sh4d4p join. | |
 CEV | Alep leaves. | |
 DVT | Roster is signed by  ALMGHTY. Chord, Heaven, incendió, IrfanJ, Sh4d4p, Smokii, and Wildrilla leave. | |
| RAMS | Nacho (Coach) leaves. | |
| TOR | Methodz moves to substitute. | |
| WstR | GloFrosty joins. Zaptius rejoins. GRVTY, Phantomz, and Fenix (Coach) leave. | |
| NY.A | GloFrosty leaves. | |
| March 9 | ||
| MV3 | Hyzzn leaves. | |
| HYXR | Proto leaves. | |
| HT | Zer0 is loaned from LDN Royal Ravens. Weeman leaves. | |
| LDN | Zer0 is loaned to House Tarth. | |
| March 8 | ||
| UYU | Charullz, Nightmare, Pure, and Ryza leave. | |
 QLS | Fussion and Torress leave. | |
| TH | EriKBooM leaves. | |
| LDN | Zer0 returns from loan to Team Singularity. | |
 SNG | Bidz, Denza, Maple, Detain, DREAL (Coach), and Conny (Analyst) leave. Zer0's loan from LDN Royal Ravens ends. | |
 NexT | DreeyK, Getway, Horid, and LuKinas leave. | |
| March 8 (approx.) | ||
 3G | Aroma, Detain, Nevo, and Niall leave. | |
| March 7 | ||
| Simp is awarded the Call of Duty League 2021 - Stage 1 Player of the Stage. | ||
 Atlanta FaZe  Dallas Empire in the Call of Duty League 2021 - Stage 1 Major. | ||
| Pro players omg xd Locked in in the Call of Duty Challengers 2021 Open #1 North America. | ||
Orgless  RAMS in the Call of Duty Challengers 2021 Open #1 Europe. | ||
Renegades  Mindfreak in the Call of Duty Challengers 2021 Open #1 Asia Pacific. | ||
 DG Esports  Rimo Sadewa in the Garena Major Series Season 4 Grand Finals. | ||
| DG Esports qualifies for the Garena Invitational 2021. | ||
| March 6 | ||
| Hey SnKipss in the UMG Gaming Prime $500 2v2 SnD 2021-03-06. | ||
| 3G | 7omm1 (Coach) leaves. | |
| UG | Beehzy, FA5TBALLA, Mirage, and Trajic join. Husk, JRey, Lightning, and Prodigy leave. | |
| AMLS | Stirpeeh leaves. | |
| March 5 | ||
RAMS  Mav3ricks Gaming Club in the EEG European League 2021 Season 1 Playoffs. | ||
 RSG Divinity.Uprising in the MYSG Championship 2021. | ||
| RSG and Divinity.Uprising qualify for the Garena Invitational 2021. | ||
 MF | Team signs roster of  Vertex Gaming. Jazhn, ManOfChicken, Middoh, and Osprey join. | |
 VRTX | Roster is signed by Mindfreak. Jazhn, ManOfChicken, Middoh, and Osprey leave. | |
| March 4 | ||
| QLS | YaKo leaves. | |
 QLASH Mav3ricks Gaming Club in the NGL Masters Division 2021 Stage 1 Playoffs. | ||
| March 3 | ||
 NAVI | Recrent (Content Creator) joins. | |
| LDN | Zed joins, replacing Alexx because of personal family matters. Alexx moves to substitute. | |
 EvL | Vitin (Head Coach) joins. | |
| March 2 | ||
| Team Swagg Team Tommey in the Toronto Ultra 100K Payout Season Two. | ||
 RISE | CaLiFa (Content Creator) and JHaZe (Content Creator) join. | |
| LAT | Novus (Analyst) joins. | |
| WstR | Phantomz joins. Zaptius leaves. | |
| uTC | Jintroid, Phantomz, Wrecks, Yeez, and JH3 (Coach) leave. | |
| T1 | Gee and Holic leave. | |
| March 1 (approx.) | ||
 HOPE | Bafundo, Herby, Proffecide, and Radial leave. | |
 TM | eMolly, JesusSavesU, Legacy, Leon, Nero, and Saxy join. Aerith, Noah, and Vague leave. | |
 NOVA | Saxy leaves. | |
 PE | Cryptic, Groovy, JLags, and Legal leave. | |
| OBT B | Melko joins. Taaqz leaves. | |
 WaR | Vortex leaves. | |
 MEC | Caos, Matute, Rafa, and Savage join. | |
 ARC | Gwinn and TrenchUnit leave. | |
| March 1 | ||
| TM | Godzly retires. | |
 TGP | GagonsY, Pepitas, and Torress leave. | |
 dGen | Cruze, Mind, Wand, Whiz, and Faded (Coach) leave. | |
| AMLS | Drumpz retires. | |
 NUX | Melko (Ambassador) joins. | |
| Team Beta Team Delta in the eFuse Next Up Cup. | ||