| League Transactions |
|---|
 | Preseason Week 1, 2021: The Baltimore Hawks have released Paul Roberts - FS. |
| Preseason Week 1, 2021: The Baltimore Hawks have released Brian Lassiter - G. |
| Preseason Week 1, 2021: The Baltimore Hawks have released Roy Cox - TE. |
| Preseason Week 1, 2021: The Baltimore Hawks have released Joe Lemke - TE. |
| Preseason Week 1, 2021: The Baltimore Hawks have released Dwight Huerta - LB. |
 | Preseason Week 1, 2021: The Colorado Yeti have released Donald Miller - QB. |
| Preseason Week 1, 2021: The Colorado Yeti have released John Varney - QB. |
| Preseason Week 1, 2021: The Colorado Yeti have released Mark Alonzo - G. |
| Preseason Week 1, 2021: The Colorado Yeti have released William Welch - WR. |
| Preseason Week 1, 2021: The Colorado Yeti have released Thomas Diaz - WR. |
| Preseason Week 1, 2021: The Colorado Yeti have released Randy Baker - SS. |
| Preseason Week 1, 2021: The Colorado Yeti have released Lee Stephen - FS. |
 | Preseason Week 1, 2021: The Philadelphia Liberty have released Emmitt Hair - RB. |
| Preseason Week 1, 2021: The Philadelphia Liberty have released John Palma - FB. |
| Preseason Week 1, 2021: The Philadelphia Liberty have released Michael Bateman - FS. |
| Preseason Week 1, 2021: The Philadelphia Liberty have released James Reynolds - T. |
 | Preseason Week 1, 2021: The Yellowknife Wraiths have released Leonard Boland - QB. |
| Preseason Week 1, 2021: The Yellowknife Wraiths have released Fredrick Mcvay - FB. |
| Preseason Week 1, 2021: The Yellowknife Wraiths have released Ty Cecil - WR. |
| Preseason Week 1, 2021: The Yellowknife Wraiths have released Timothy George - SS. |
| Preseason Week 1, 2021: The Yellowknife Wraiths have released John Bush - DT. |
| Preseason Week 1, 2021: The Yellowknife Wraiths have released Bork Bjorrnsson - DE. |
| Preseason Week 1, 2021: The Yellowknife Wraiths have released Blaster Blade - DE. |
 | Preseason Week 1, 2021: The Arizona Outlaws have released Millard Malloy - FB. |
| Preseason Week 1, 2021: The Arizona Outlaws have released Allan Castleberry - CB. |
| Preseason Week 1, 2021: The Arizona Outlaws have released Dean Jackson - K. |
| Preseason Week 1, 2021: The Arizona Outlaws have released Enoch Erwin - SS. |
| Preseason Week 1, 2021: The Arizona Outlaws have released Justin Morales - DE. |
| Preseason Week 1, 2021: The Arizona Outlaws have released Charles Stoker - CB. |
| Preseason Week 1, 2021: The Arizona Outlaws have released Horace Mason - LB. |
 | Preseason Week 1, 2021: The Las Vegas Legion have released James Schoonover - QB. |
| Preseason Week 1, 2021: The Las Vegas Legion have released Henry Frank - G. |
| Preseason Week 1, 2021: The Las Vegas Legion have released Adolfo Cox - T. |
| Preseason Week 1, 2021: The Las Vegas Legion have released Fred Moore - LB. |
| Preseason Week 1, 2021: The Las Vegas Legion have released Thomas Allen - WR. |
| Preseason Week 1, 2021: The Las Vegas Legion have released Aaron Travis - SS. |
| Preseason Week 1, 2021: The Las Vegas Legion have released Isaac Brown - DE. |
 | Preseason Week 1, 2021: The Orange County Otters have released Willie Zeller - G. |
| Preseason Week 1, 2021: The Orange County Otters have released Jeff Winter - SS. |
| Preseason Week 1, 2021: The Orange County Otters have released Robert Carey - SS. |
| Preseason Week 1, 2021: The Orange County Otters have released Blaine Roach - WR. |
| Preseason Week 1, 2021: The Orange County Otters have released Billy Felts - C. |
| Preseason Week 1, 2021: The Orange County Otters have released Douglas Felix - LB. |
 | Preseason Week 1, 2021: The San Jose SaberCats have released Peter Langer - RB. |
| Preseason Week 1, 2021: The San Jose SaberCats have released Raymond Santos - RB. |
| Preseason Week 1, 2021: The San Jose SaberCats have released Joseph Radford - FB. |
| Preseason Week 1, 2021: The San Jose SaberCats have released William Hartwell - C. |
| Preseason Week 1, 2021: The San Jose SaberCats have released James Mize - WR. |
| Preseason Week 1, 2021: The San Jose SaberCats have released Peter Gates - SS. |
| Preseason Week 1, 2021: The San Jose SaberCats have released Lincoln Jefferson - FS. |
| Preseason Week 1, 2021: The Orange County Otters have signed Thomas Mango - RB. |
| Preseason Week 1, 2021: The Hawks trade a Hawks 2022 1st to the Outlaws for Noah Goodson. |
| Preseason Week 1, 2021: The Hawks trade a Hawks 2022 1st to the Outlaws for Noah Goodson. |
| Preseason Week 1, 2021: The Hawks trade Cooper Christmas to the Outlaws for a Hawks 2022 1st. |
| Preseason Week 1, 2021: The Hawks trade Cooper Christmas to the Outlaws for a Hawks 2022 1st. |
| Preseason Week 1, 2021: The Hawks trade Juan Andres to the Second Line for a Second Line 2022 1st. |
| Preseason Week 1, 2021: The Hawks trade Juan Andres to the Second Line for a Second Line 2022 1st. |
| Preseason Week 1, 2021: The Yeti trade future considerations to the Liberty for AC Hackett. |
| Preseason Week 1, 2021: The Yeti trade future considerations to the Liberty for AC Hackett. |
| Preseason Week 1, 2021: The Baltimore Hawks have released ZoBot Chicken - QB. |
| Preseason Week 1, 2021: The Baltimore Hawks have released Zobot Runner2 - RB. |
| Preseason Week 1, 2021: The Colorado Yeti have released ZoBot RunMachine4 - RB. |
| Preseason Week 1, 2021: The Colorado Yeti have released ZoBot PuntMachine4 - P. |
| Preseason Week 1, 2021: The Colorado Yeti have released Zobot Catchem9 - WR. |
| Preseason Week 1, 2021: The Colorado Yeti have released ZoBot BotCatcher - WR. |
| Preseason Week 1, 2021: The Colorado Yeti have signed ZoBot PuntMachine4 - P. |
| Preseason Week 1, 2021: The Colorado Yeti have signed Zobot RunBot2 - RB. |
| Preseason Week 1, 2021: The Colorado Yeti have released ZoBot StrongSafety5 - SS. |
| Preseason Week 1, 2021: The Colorado Yeti have released Mark Jeffers - FS. |
| Preseason Week 1, 2021: The Colorado Yeti have released Gregory May - DT. |
| Preseason Week 1, 2021: The Philadelphia Liberty have released ZoBot JugsMachine3 - QB. |
| Preseason Week 1, 2021: The Philadelphia Liberty have released Jon Ross - WR. |
| Preseason Week 1, 2021: The Philadelphia Liberty have signed Zobot Linebacker - LB. |
| Preseason Week 1, 2021: The Yellowknife Wraiths have released Joseph Lombardi - K. |
| Preseason Week 1, 2021: The Yellowknife Wraiths have released ZoBot BigCatchMachine6 - TE. |
| Preseason Week 1, 2021: The Yellowknife Wraiths have released ZoBot BackerBot4 - LB. |
| Preseason Week 1, 2021: The Yellowknife Wraiths have released Elwood Charles - T. |
| Preseason Week 1, 2021: The Arizona Outlaws have released ZoBot JugsMachine2 - QB. |
| Preseason Week 1, 2021: The Arizona Outlaws have released ZoBot Hand Bot - WR. |
| Preseason Week 1, 2021: The Arizona Outlaws have released ZoBot PuntMachine - P. |
| Preseason Week 1, 2021: The Arizona Outlaws have released Zobot Catchem7 - WR. |
| Preseason Week 1, 2021: The New Orleans Second Line have released Logan Ryder - QB. |
| Preseason Week 1, 2021: The New Orleans Second Line have signed Joseph Lombardi - K. |
| Preseason Week 1, 2021: The New Orleans Second Line have released ZoBot StoneHandsBot - WR. |
| Preseason Week 1, 2021: The Orange County Otters have released Zobot Fuller5 - FB. |
| Preseason Week 1, 2021: The Orange County Otters have released ZoBot CatchMachine17 - WR. |
| Preseason Week 1, 2021: The Orange County Otters have signed Zobot RunBot2 - RB. |
| Preseason Week 1, 2021: The Orange County Otters have signed ZoBot CantCatchBot - WR. |
| Preseason Week 1, 2021: The Orange County Otters have released ZoBot BallHawk2 - FS. |
| Preseason Week 1, 2021: The San Jose SaberCats have released Zobot Basketball2 - TE. |
| Preseason Week 1, 2021: The San Jose SaberCats have released Connor Tanner - TE. |
| Preseason Week 1, 2021: The Colorado Yeti have released Jaquan Young - WR. |
| Preseason Week 1, 2021: The New Orleans Second Line have released Leon Morgan - CB. |
| Preseason Week 1, 2021: The New Orleans Second Line have signed Isaac Brown - DE. |
| Preseason Week 1, 2021: The New Orleans Second Line have released Jerry Ricecake - WR. |
| Preseason Week 1, 2021: Cesar Milan has retired. |
| Week 1, 2021: The Colorado Yeti have released Brice Boggs - CB. |
| Week 1, 2021: The Baltimore Hawks have released Dieter Koch - RB. |
| Week 1, 2021: The Colorado Yeti have signed ZoBot BigCatchMachine6 - TE. |
| Week 1, 2021: The Baltimore Hawks have released Carlos Dawkins - WR. |
| Week 1, 2021: The Baltimore Hawks have released Justin Eldridge - LB. |
| Week 1, 2021: The Baltimore Hawks have signed ZoBot CatchMachine17 - WR. |
| Week 1, 2021: The Baltimore Hawks have signed Zobot Runner2 - RB. |
| Week 1, 2021: The Baltimore Hawks have signed Zobot Runner3 - RB. |
| Week 1, 2021: The New Orleans Second Line have released Logan Noble - QB. |
| Week 1, 2021: The New Orleans Second Line have released Kyle Cobb - RB. |
| Week 1, 2021: The New Orleans Second Line have released Jett Winter - T. |
| Week 1, 2021: The New Orleans Second Line have released Luc Long - C. |
| Week 1, 2021: The New Orleans Second Line have released John Baker - WR. |
| Week 1, 2021: The New Orleans Second Line have released Eugene Kim - CB. |
| Week 1, 2021: The New Orleans Second Line have released Sinjin Flimjollywop - LB. |
| Week 1, 2021: The New Orleans Second Line have released Isaac Brown - DE. |
| Week 1, 2021: The New Orleans Second Line have released Ryan Lecavalier - FS. |
| Week 1, 2021: The New Orleans Second Line have released Devin Speed - SS. |
| Week 1, 2021: The New Orleans Second Line have released Bojo Kicksit - K. |
| Week 1, 2021: The Second Line trade future considerations to the Otters for Adamle Tomlinson, Dominic Verns. |
| Week 1, 2021: The Second Line trade future considerations to the Otters for Adamle Tomlinson, Dominic Verns. |
| Week 1, 2021: The New Orleans Second Line have signed ZoBot JugsMachine2 - QB. |
| Week 1, 2021: The New Orleans Second Line have signed ZoBot RunMachine4 - RB. |
| Week 1, 2021: The New Orleans Second Line have signed ZoBot StrongSafety5 - SS. |
| Week 1, 2021: The New Orleans Second Line have signed Zobot Blanket4 - SS. |
| Week 1, 2021: The New Orleans Second Line have signed Zobot Catchem7 - WR. |
| Week 1, 2021: The New Orleans Second Line have signed Zobot Bigboy17 - C. |
| Week 1, 2021: The New Orleans Second Line have signed Zobot Blanket8 - SS. |
| Week 1, 2021: The New Orleans Second Line have signed Zobot Bigboy14 - C. |
| Week 1, 2021: The New Orleans Second Line have released Zobot Blanket4 - SS. |
| Week 1, 2021: The New Orleans Second Line have released ZoBot StrongSafety5 - SS. |
| Week 1, 2021: The New Orleans Second Line have released Zobot Bigboy17 - C. |
| Week 1, 2021: The New Orleans Second Line have released ZoBot FatTackle5 - DT. |
| Week 1, 2021: The Baltimore Hawks have released ZoBot LineBackBot - LB. |
| Week 1, 2021: The Baltimore Hawks have signed Austin Roenick - LB. |
| Week 1, 2021: The Orange County Otters have signed Bogdan Wojcik - DT. |
| Week 1, 2021: The Orange County Otters have signed James Sorrell - DE. |
| Week 1, 2021: The Arizona Outlaws have signed ZoBot JugsMachine3 - QB. |
| Week 1, 2021: The Arizona Outlaws have released ZoBot BackerBot6 - LB. |
| Week 3, 2021: The Orange County Otters have released Jack Durden - FB. |
| Week 3, 2021: The Orange County Otters have released Thomas Mango - RB. |
| Week 3, 2021: The Orange County Otters have released Bogdan Wojcik - DT. |
| Week 3, 2021: The Orange County Otters have released Vinny Cox - DT. |
| Week 3, 2021: The Arizona Outlaws have released Wyatt Fulton - LB. |
| Week 4, 2021: The Philadelphia Liberty have released Max Dalton - QB. |
| Week 4, 2021: The Philadelphia Liberty have signed Zobot Slinger1 - QB. |
| Week 4, 2021: The Philadelphia Liberty have released Neal Poston - RB. |
| Week 4, 2021: The Philadelphia Liberty have released Paris Perez - WR. |
| Week 4, 2021: The Philadelphia Liberty have released Mathew Adams - RB. |
| Week 4, 2021: The Philadelphia Liberty have released Kristoffer O'Sullivan - CB. |
| Week 4, 2021: The Philadelphia Liberty have released Big Bot - DE. |
| Week 4, 2021: The Philadelphia Liberty have signed ZoBot SlowBot - RB. |
| Week 4, 2021: The Philadelphia Liberty have released Johnny Rocket - WR. |
| Week 4, 2021: The Philadelphia Liberty have signed Zobot Catchem9 - WR. |
| Week 4, 2021: The Colorado Yeti have released Grey Slax - WR. |
| Week 4, 2021: The Colorado Yeti have signed ZoBot StoneHandsBot - WR. |
| Week 5, 2021: The Arizona Outlaws have released Damian West - WR. |
| Week 5, 2021: The Arizona Outlaws have released Arbin Asipi - DT. |
| Week 5, 2021: The Arizona Outlaws have released Jacob Lattimore - LB. |
| Week 5, 2021: The Colorado Yeti have released Levon Novel - FS. |
| Week 5, 2021: The Colorado Yeti have signed ZoBot FreeSafetyBot - FS. |
| Week 5, 2021: The Arizona Outlaws have signed ZoBot BackerBot4 - LB. |
| Week 5, 2021: The Arizona Outlaws have signed Zobot FattyBot - DT. |
| Week 5, 2021: The Arizona Outlaws have signed ZoBot BotCatcher - WR. |
| Week 5, 2021: The Second Line trade future considerations to the Yeti for Peg Leg. |
| Week 5, 2021: The Second Line trade future considerations to the Yeti for Peg Leg. |
| Week 8, 2021: The New Orleans Second Line have released Joseph Lombardi - K. |
| Week 10, 2021: The San Jose SaberCats have signed Damian West - WR. |
| Week 10, 2021: The San Jose SaberCats have released ZoBot CatchMachine19 - WR. |
| Week 13, 2021: The Arizona Outlaws have signed Zobot EndTight - TE. |
| Week 14, 2021: The Colorado Yeti have released Storm Woods - CB. |
| Week 14, 2021: The Colorado Yeti have signed Zobot CantCatchBot - CB. |