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| May 31 | ||
|---|---|---|
 AE | WarDy joins. Furiious leaves. | |
  Salem Esports   iNCO Gaming in the Mobile Mayhem SA 2023 Spring Playoffs. | ||
 SLM | Fokeey, Henricat, LeozZera, Mihawk, Pabzera, and Palitao (Coach) leave. | |
 T1G | cWadz joins. Sizkie leaves. | |
 BOS.A | Gunsiii joins. | |
 NRK | Gunsiii leaves. | |
 AMT | FDx joins. | |
| May 30 | ||
 Luminosity Gaming  TLE Esports in the Mobile Mayhem NA 2023 Spring Playoffs. | ||
| May 29 | ||
 KOXC | Cruz, Genesis, Niall, Twizz, and Vindaloo (Coach) leave. | |
 VxM | Hamza, Hollow, Infinit, and Jintroid leave. | |
 RØK.A | 2ReaL joins. ProMR (temporary substitute) leaves. ReeaL moves to starting roster. WarDy leaves. | |
 OMiT | GodRx joins. Phantomz leaves. | |
 OUT | Cryptic, Darksived, Fire, and Gusify leave. | |
 rV | Proffecide leaves. | |
 TGE | Gunless, Nero, Prestinni, Wrecks, Apox (Coach), and Wyggzz (Analyst) leave. | |
 DD | 2ReaL, Classic, GodRx, MajorManiak, and BrianViiox (Coach) leave. | |
| May 28 | ||
 TSU | EmiliaRose leaves. | |
| HyDra is awarded the Call of Duty League 2023 - Major 5 MVP. | ||
 New York Subliners  Atlanta FaZe in the Call of Duty League 2023 - Major 5. | ||
 Aw0babobs  Decimate Gaming in the CDC Toronto Open 2023. | ||
| Aw0babobs and Decimate Gaming qualify for the Call of Duty Challengers Finals 2023. | ||
| May 25 | ||
 TEX | Karma (Coach) joins. | |
| May 24 | ||
| KOXC | Cruz, Genesis, Niall, Twizz, and Vindaloo (Coach) join. | |
| May 23 | ||
| VxM | Hamza, Hollow, Infinit, and Jintroid join. | |
| TGE | Team signs roster of  Convoy Gaming. Gunless, Nero, Prestinni, Wrecks, Apox (Coach), and Wyggzz (Analyst) join. | |
 CNVY | Roster is signed by  The Greatest Ever. Gunless, Nero, Prestinni, Wrecks, Apox (Coach), and Wyggzz (Analyst) leave. | |
 STR | FeleXY, Furiaslay, Geremia, and Sharhy leave. | |
| May 22 | ||
 STA | DJ, Evadde, Rafa, and Savage leave. | |
 TST Phoenix  Toronto Tsunami in the WxC Season 1 Playoffs. | ||
| May 21 | ||
 LN | JEnergy leaves. | |
 D1.LA | Sqechy joins. EliTz leaves. | |
Convoy Gaming  OMiT in the CDC North America 2023 Cup #12. | ||
 Latam Nukes  Team Smog in the CDC Latin America 2023 Cup #12. | ||
 Aphelion Esports  The Atlas Lions in the CDC Europe 2023 Cup #12. | ||
 PointBlank  VOID in the CDC Asia Pacific 2023 Cup #12. | ||
| May 20 | ||
| STA | DJ, Evadde, Rafa, and Savage join. | |
| May 19 (approx.) | ||
| OUT | Fire joins. | |
| May 19 | ||
| DD | 2ReaL, Classic, GodRx, MajorManiak, and BrianViiox (Coach) join. | |
| May 18 | ||
 NOC | SebastianMas (Manager) joins. | |
 ORB | SebastianMas (Manager) leaves. | |
 AMG | Krozin joins. | |
 iNCO | Krozin leaves. | |
 Millennium 7  Anarky Gaming in the CDC North America 2023 Elite Stage 4 Playoffs. | ||
| Aphelion Esports Aw0babobs in the CDC Europe 2023 Elite Stage 4 Playoffs. | ||
| May 16 | ||
| MIN | Attach moves to starting roster. Afro moves to substitute. | |
| May 15 (approx.) | ||
 XG | Ayeoraph, Cartels, JesusSaves, Kingz, Pepe, and Saiaz leave. | |
| May 14 | ||
 PHX | Bel, Cely, Kels, Tea, and Mystvc (Coach) join. | |
| RØK.A | WarDy joins. ProMR joins as temporary substitute for CDC Toronto Open 2023, replacing ReeaL. ReeaL moves to substitute. GodRx leaves. | |
| OUT | ProMR leaves. | |
 Wolves  Douyu Gaming in the Chinese Masters Cup Season 5 Playoffs. | ||
| May 12 | ||
 EZRB | Jello, Joshh, Seven, YungJ, and Zman join. | |
| May 11 | ||
 ANM | Boot and Razmo join. | |
 KING | Onur and Razmo leave. | |
| D1.LA | EliTz joins. | |
| May 10 | ||
| KING | Grizz joins. | |
| ANM | Grizz leaves. | |
| May 9 | ||
| rV | Proffecide, TrenchUnit, Welly, and Xotic join. | |
 MTG | daM joins. Sun leaves. | |
 Q9 | Sun joins. daM leaves. | |
| May 8 | ||
| D1.LA | ITraDex leaves. | |
| XG | Ayeoraph, Cartels, JesusSaves, Kingz, Pepe, and Saiaz join. | |
| May 7 | ||
| LittleOTTAWABears Pulse in the CDC North America 2023 Cup #11. | ||
Latam Nukes  D1 Gaming LA in the CDC Latin America 2023 Cup #11. | ||
African Heritage  Team Falcons in the CDC Europe 2023 Cup #11. | ||
 Mindfreak PointBlank in the CDC Asia Pacific 2023 Cup #11. | ||
| May 6 | ||
 NF | Bighead joins. Aidanyx leaves. | |
| May 6 (approx.) | ||
 FAL | Vampire moves to starting roster. Chaaxter leaves. | |
| May 5 | ||
| TSU | AzuraAnarchy, FrontDeskLady, Lily, Mizu, BrianViiox (Coach), and Overgirl (Owner) join. EmiliaRose joins as substitute. | |
 SMOG | Coorsa, Coti, Couti, and Dylan join. | |
| LN | Coti leaves. | |
| May 4 | ||
 LG | Marshy, Tectonic, and Vague join. | |
 SEM | Space joins. Marshy, Tectonic, and Vague leave. | |
| May 3 | ||
 HIVE | Zinx (Coach) joins. | |
| TEX | Rambo (General Manager) leaves. | |
 SYN | Fibrone joins. | |
| May 2 | ||
| AE | Furiious and Mythix join. Denza, Harry, Roper (Coach), and Synical (Analyst) rejoin. | |
| May 1 (approx.) | ||
| iNCO | LiNBZ joins. | |
| May 1 | ||
| LN | Coti, JEnergy, JokerKun, and Keo join. | |