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| August 31 | ||
|---|---|---|
 PAR | Novus (Analyst) leaves. | |
 AF.A | Venom leaves. | |
 NME | Ethan2Nice and Waterhead leave. | |
 WarsZ & Vapulear  Symfuhny & HusKerrs in BoomTV Cash App Games. | ||
| Call of Duty League announces team size change from 5v5 to 4v4 for the 2021 Season. | ||
| August 30 | ||
 MAZ | Ninjaso and Twinz join. PraaX and Taaqz leave. | |
| C6 is awarded the Call of Duty League Championship 2020 MVP. | ||
 Dallas Empire  Atlanta FaZe in the Call of Duty League Championship 2020. | ||
Maven & MerK  US Army Esports in Call of Duty League 2020 US Army 2v2 Face-Off. | ||
 Black Dragons eSport,  FEB E-Sports,  Chapecoense E-Sports, and Dayton of Fire qualify for COD Mobile World Championship 2020 LA Final. | ||
| チーム澪, おちんちん, DoomArmy, and Wimps B qualify for COD Mobile World Championship 2020 JP Final. | ||
GamenGeek,  Insidious Esports, 1st eSports, and  UnBroken Esports qualify for COD Mobile World Championship 2020 EA Final. | ||
| August 29 | ||
| Arcitys, Shotzzy, Octane, Simp, and Envoy are selected as the SCUF Team of the Year. | ||
 TOR | MarkyB (Strategic Coach to Head Coach) changes position. | |
 Minnesota RØKKR  Toronto Ultra in the CDL City Circuit 2020 Championship. | ||
| August 28 | ||
 PSH | EriKBooM leaves. | |
 DAL | Post Malone (Co-Owner) joins. | |
 ENVY | Post Malone (Co-Owner) joins. | |
 COW | Fusionz, Grad, Hawqeh, Iviano, and LewTee leave. | |
| August 27 | ||
| Symfuhny & Bloo NICKMERCS & Nio in Vikkstar's Warzone Showdown: Week 1. | ||
| Call of Duty League 2020 All-Star Weekend to take place on September 12-13. | ||
| August 26 | ||
| Black Ops Cold War to be released on November 13. Multiplayer reveal on September 9. | ||
| August 25 | ||
 MIN | Team is sponsored by X Rocker. | |
| Tommey & Almond SuperEvan & Tfue in BoomTV TeeP's Trials 4. | ||
| August 23 | ||
| Shotzzy is awarded the Call of Duty League 2020 MVP. | ||
| August 22 | ||
ACGL | Frantic6 Lunar MGO in the ACGL C3ZA Challengers Cup 2020-08-22. | |
| August 21 | ||
 OR | Zinx leaves. | |
| Miles Ross MerK in Call of Duty League: Mobile Special Exhibition. | ||
| August 19 | ||
 OGLA | Dashy subs in for Kuavo in LR1 Game 5 vs LAG due to connection issues. | |
| Black Ops Cold War is officially announced. Full reveal will be on August 26. | ||
| August 18 | ||
| Jukeyz & Deleo Mvriiooo & Smitty in BoomTV TeeP's Trials 3. | ||
| August 17 (approx.) | ||
 MRKN | Gentry, Jusitfy, Nejra, Tragic, and Veilleux leave. | |
 GF | Caprillux, Climate, Emilia, MeeBow, and RyBeams leave. | |
 BTG | Careful, Cruelty, Cxnspiracy, Striker, and Tyrannicide leave. | |
 AE | Contested, Hybrid, Osprey, Riqz, and Sponsord leave. | |
 SNG | Maple returns from loan to HyperBoom. | |
 LUC | Bheans, Chaaxter, CharlieCuthbert, Toki, and Vitxll leave. | |
 HB | BBConor, Cxllum, Disarray, and Hicksy leave. Maple's loan from Team Singularity ends. | |
 OBT | Braaain, JRezzy, Niall, WarDy, Wartex, 7omm1 (Coach), and Synical (Analyst) leave. | |
| August 17 | ||
 CONN | camallenn (Analyst) leaves. | |
 eYa | Aroma, Billy, Furiious, Jambo, and YellowBeanBag leave. | |
| PAR | Breszy returns from loan to TrainHard Esport. | |
 TH | Defrag, HyDra, Peatie, and DREAL (Coach) leave. Breszy's loan from PAR Legion ends. | |
| MIN | TTinyy returns from loan to Virginia Velocity. | |
 VEL | Bink, DraMa, Theory, and TwiZz leave. TTinyy's loan from MIN RØKKR ends. | |
 UG | ACHES and Spacely leave. | |
| Aydan & MuTeX Tommey & Almond in Swagg's Summer Warzone Invitational. | ||
| Sony Xperia joins as official mobile partner of league. A COD Mobile Showcase will take take on August 21. | ||
| PSH | RenKoR leaves. | |
| August 16 | ||
 OBT B | Buller, Dani, Drumpz, Fussion, and Torress leave. | |
 NS | 47, Apexcitys, Druxy, Jake, and MonGhoster leave. | |
| NS | Bondy, Cregan, Liaym, Stocka, and Swanny56k leave. | |
| OGLA | Goonjar returns from loan to Five Star. | |
 FIVE | Fire, Noysii, Parasite, and Xotic leave. Goonjar's loan from OpTic Gaming LA ends. | |
 Triumph  Carnage Gaming in the Call of Duty Challengers 2020 Finals North America. | ||
 Team WaR  Team Singularity in the Call of Duty Challengers 2020 Finals Europe. | ||
| August 15 | ||
 SMOG | Evadde, Ruper, and Slayer join. DJ, Freekz, and Syndrex leave. | |
 SHY | Evadde leaves. | |
 InC | Clamp, FA5TBALLA, Knight, Onyx, and Parzelion leave. | |
 Renegades  Chiefs Esports Club in the Call of Duty Challengers 2020 Finals Asia Pacific. | ||
| HB | BBConor, Cxllum, Disarray, and Hicksy join. Maple is loaned from Team Singularity. | |
| SNG | Maple is loaned to HyperBoom. | |
 DIA | Destiny, Infinit, Medicate, Mohak, and OPTIMUM join. | |
| August 15 (approx.) | ||
 TRU | Clashy, Fusion, Gamer, Solid, TipWrath, and Xia join. | |
| August 14 | ||
 MKS | Biso, Blade, Diixblo, Infernal, Predax, KarmSlaya (Coach), and oneres (Manager) join. | |
| UG | Team signs roster of GetBusy. ACHES, Apox, ProFeeZy, Spacely, and TcM join. | |
| GETB | Roster is signed by  Unjustified Gaming. ACHES, Apox, ProFeeZy, Spacely, and TcM leave. | |
| eYa | Aroma, Billy, Furiious, Jambo, and YellowBeanBag join. | |
| MRKN | Gentry, Jusitfy, Nejra, Tragic, and Veilleux join. | |
 RECT | Mauser, NiZZaYe, POWInfinity, Proxzify, and Silent join. | |
| VEL | Bink, DraMa, Theory, and TwiZz join. TTinyy is loaned from MIN RØKKR. | |
| MIN | TTinyy is loaned to Virginia Velocity. | |
 UGK | FroFro, Kylzen, Logicxn, TheJDS97, and Tremor join. | |
| LUC | Beans, Chaaxter, CharlieCuthbert, Toki, and Vitxll join. | |
 MH | Beans, Chaaxter, CharlieCuthbert, Toki, and Vitxll leave. | |
 LDN | Jukeyz (Content Creator) joins. | |
 Lèsè | Astatix, Beastn, Imagine, Immense, and Jazhn join. | |
| August 13 | ||
| Team Symfuhny Team Aydan in the Twitch Rivals Warzone Streamer Showdown 3 North America. | ||
| August 12 | ||
 XSET | ProoFy (Content Creator) joins. | |
| NS | 47, Apexcitys, Druxy, Jake, and MonGhoster join. | |
| NS | Bondy, Cregan, Liaym, Stocka, and Swanny56k join. | |
| Team Makatao Team Recrent in the Twitch Rivals Warzone Streamer Showdown 3 Europe. | ||
| August 11 | ||
| Symfuhny & HusKerrs Karma & ScummN in the BoomTV TeeP's Trials 2. | ||
| Free Agency for the 2021 season will begin on September 14 (Full Announcement). | ||
| GF | Caprillux, Climate, Emilia, MeeBow, and RyBeams join. | |
| August 10 | ||
| BTG | Careful, Cruelty, Cxnspiracy, Striker, and Tyrannicide join. | |
| August 9 | ||
 WestR Hectic Esports in the GameBattles Premium $1000 5v5 CDL Variant 2020-08-09. | ||
| Bes & Rafi Are Clowns I Cannot shoot back in the GameBattles Premium $1000 5v5 EU CDL Variant 2020-08-09. | ||
| August 8 | ||
 1K Gaming qualifies for the COD Mobile World Championship 2020. | ||
| 1K Gaming Midnight KR in the COD Mobile World Championship 2020 KR Final. | ||
| August 7 | ||
| OR | Deelo, Pentagrxm, Stamino, Willett, and Gunna (Coach) join. Zinx rejoins. | |
| Team Orange Storm Team Cherry Burst in the EZAF Showcase 2020. | ||
| August 6 | ||
 TDP | Calero, DanielK, Guti, HectorXII, Luiso, and Pblo leave. | |
| Team NICKMERCS Team Rated in the Toronto Ultra $100K Payout. | ||
| OBT | Synical (Analyst) joins. Braaain, JRezzy, Niall, WarDy, Wartex, and 7omm1 (Coach) rejoin. | |
| COW | ShoX (Manager) joins. | |
 ANI | ShoX (Manager) leaves. | |
| August 5 | ||
 AA | Example and SinnR join. Boards, kLoH, and Stolly rejoin. | |
 VrT | Firi joins. | |
 Z7 | Firi leaves. | |
| August 4 | ||
 TRB | BoLu, Chailds, Clout, Leon, LittleB, Marshy, Nero, Tectonic, and ZiM (Coach) join. | |
 OE | Clout and Leon leave. | |
| MH | Divinity, Hecful, SCreative, Styled, and Vision join. | |
| Rated & Dezmond KingRichard & Jukeyz in the BoomTV TeeP's Trials. | ||
| NME | Ethan2Nice, FarMa, Jumpy, Lightning, Waterhead, and Ayzreal (Coach) join. | |
| MAZ | Avo, Nxsus, PraaX, ReskiA, and Taaqz join. | |
| August 3 | ||
| UG | Brxdy, Foncho, HyPno, Mawxed, and Xerrtz leave. | |
| August 2 | ||
AF Academy,  J4L Org,  Team dGeneration, WestR, Team dGeneration, RevivedHQ, Hectic Esports, and XEO qualify for CDC Championship 2020 North America. | ||
 Clutch Rayn Esport,  Voltage eSport, Energy Crew, The pigeons, £10s Squaddy, Noodle hair and the boys, chuckle vision, and  For The Win Esports qualify for CDC Championship 2020 Europe. | ||
Last Chance, NASA,  SeaTurtles Black, and Team Titans qualify for CDC Championship 2020 Asia Pacific. | ||
| August 1 | ||
 HRG | Koots, Phenom, Sher, Spike, and TBEDylan join. | |
| August 1 (approx.) | ||
 NRX | Warren joins as substitute. Kyaaah (Player to Coach) changes position. | |
| SNG | Clashy, ERA, Neax, Orgic, SlayeR, and Vncnt leave. | |