July 29, 2021 - The Jackson Holy Cows added Matt Thaiss and dropped Rob Refsnyder.
July 30, 2021 - The Batavia Muckdogs claimed Richard Lovelady and released Ben Braymer.
July 30, 2021 - The Batavia Muckdogs acquired John Gant from the Jackson Holy Cows for Dan Vogelbach.
July 30, 2021 - The Dobson Ranch Bashers picked up Nick Mears and cut Nick Nelson.
July 30, 2021 - The California Coolers added Yadiel Hernandez, Jason Martin, Yu Chang, Ronald Bolanos, Humberto Castellanos and Branden Kline. They waived Jeff Samardzija, Ildemaro Vargas, Jake Noll, Jonathan Davis, Patrick Weigel and Wes Benjamin
July 29, 2021 - The San Diego Tigersharks signed Bryan Holaday & Drew Smith and released Dustin Garneau & Jonathan Lucroy.
July 25, 2021 - The Dobson Ranch Bashers picked up Deolis Guerra, Tyler Kinley & Austin Davis and dropped Jay Bruce, Delino DeShields & Kyle Crick.
July 23, 2021 - The St. Charles Saints inked Jose Ruiz and waived Justin Smoak.
July 22, 2021 - The St. Charles Saints traded Howie Kendrick to the Minnesota Mudhens for MNM's #5-2022. The Saints sign Danny Santana. The Mudhens cut Cody Stashak.
July 21, 2021 - The St. Charles Saints added Carlos Hernandez and cut Yoshihisa Hirano.
July 12, 2021 - The San Diego Tigersharks released Carson Fulmer, Cionel Perez, Wade Davis and Marcus Walden to add Kyle Funkhouser, Jose Alvarez, John King and Jonathan Lucroy.
July 11, 2021 - The Arizona Arrows signed Bradley Zimmer and waived Blake Cederlind.
July 10, 2021 - The St. Charles Saints picked up Dillon Maples and cut Jairo Diaz.
July 7, 2021 - The Tucson Lizard Kings inked Corey Oswalt and let Dillon Maples go.
July 7, 2021 - The Jackson Holy Cows claimed Sam Freeman and dropped Jason Adam.
July 6, 2021 - The Batavia Muckdogs signed Junior Fernandez and released Chris Devenski.
July 5, 2021 - The Pennsylvania Sluggers dropped Michael Feliz and picked up Phil Bickford.
July 4, 2021 - The Arizona Arrows acquired Mike Clevinger from the Tucson Lizard Kings for Andrew Stevenson and ARA's #1-2022.
July 1, 2021 - The Arizona Arrows added Jose Suarez and waived Jonathan Stiever.
July 1, 2021 - The Andes Mountaineers shipped Oliver Perez to the Arizona Arrows for Tyler Flowers and ARA's #7-2022.
June 27, 2021 - The Jackson Holy Cows added Jeff Mathis and cut Bryan Holaday.
June 18, 2021 - The Tucson Lizard Kings traded Pat Valaika to the Arizona Arrows for Renato Nunez.
June 18, 2021 - The Minnesota Mudhens dealt Edwin Encarnacion and MNM's #2-2022 to the San Diego Tigersharks for Miguel Cabrera.
June 15, 2021 - The Jackson Holy Cows signed Sergio Alcantara and waived Tyler Thornburg.
June 15, 2021 - The St. Charles Saints picked up Drew Butera and released Mike Montgomery.
June 12, 2021 - The Jackson Holy Cows inked Rangel Ravelo and waived Matt Adams.
June 12, 2021 - The California Coolers added Daz Cameron and Derek Hill, they cut Luis Basabe and Brandon Dixon.
June 8, 2021 - The California Coolers signed Eric Haase and dropped Kelvin Herrera.
June 1, 2021 - The Tucson Lizard Kings picked up Patrick Wisdom and waived Jared Hughes.
May 29, 2021 - The Jackson Holy Cows inked Rob Refsnyder and cut Matt Harvey.
May 29, 2021 - The Arizona Arrows dropped Travis Blankenhorn and picked up Zach Littell.
May 24, 2021 - The Dobson Ranch Bashers signed DeMarcus Evans and released Tyler Kinley.
May 21, 2021 - The Arizona Arrows added Blake Cederlind & Jorge Ona and dropped Gio Gonzalez & Jeff Mathis.
May 21, 2021 - The Minnesota Mudhens picked up James Kaprielian and waived Danny Santana.
May 19, 2021 - The Arizona Arrows shipped Yoan Lopez and Adonis Medina to the California Coolers for Erik Kratz and Jordan Romano.
May 19, 2021 - The Arizona Arrows dealt Alex Vesia to the St. Charles Saints for Rafael Montero.
May 19, 2021 - The Arizona Arrows traded Nick Castellanos, Charlie Morton, Sandy Leon, Luke Jackson and Eric Lauer to the Whitewater Minerhawks for Carlos Carrasco, Tyler Flowers, Pierce Johnson, Blake Parker and Renato Nunez.
May 19, 2021 - The Arizona Arrows sent ARA's #4-2022 and ARA's #6-2022 to the Tucson Lizard Kings for Travis d'Arnaud. Arizona releases JoJo Romero, Tucson resigns Tyler Heineman.
May 18, 2021 - The Dobson Ranch Bashers added Tyler Kinley and dropped Carlos Hernandez.
May 16, 2021 - The Tucson Lizard Kings picked up Cole Irvin & Paolo Espino and cut Tyler Heineman & Jonathan Holder.
May 11, 2021 - The Batavia Muckdogs claimed Ben Braymer and let Franklin Barreto go.
May 8, 2021 - The Jackson Holy Cows signed Yoenis Cespedes & Tyler Thornberg and released Robert Gsellman & Daz Cameron.
May 7, 2021 - The Minnesota Mudhens added Jorge Mateo and cut Ty Buttrey.
May 4, 2021 - The St. Charles Saints picked up Jordan Holloway and dropped Anthony Banda.
May 1, 2021 - The Tucson Lizard Kings signed Dillon Maples and released Tyler Kinley.
April 30, 2021 - The Jackson Holy Cows claimed Matt Adams and waived Lane Thomas.
April 24, 2021 - The Assateague Stallions added Matt Weiters and dropped Drew Butera.
April 21, 2021 - The Jackson Holy Cows picked up Adolis Garcia and released Jose Martinez.
April 3, 2021 - The San Francisco Seals signed Yermin Mercedes and cut Luke Bard.
April 1, 2021 - Day Three Waiver Signings: The Kodiak Aces signed Mallex Smith. Unrestricted Free Agent Signings: The Minnesota Mudhens inked Max Schrock. The Kodiak Aces added Jimmy Cordero, Rony Garcia, Ivan Nova, Shun Yamaguchi, Joseph Odom and Jon Jay.
April 1, 2021 - The Dobson Ranch Bashers traded Jedd Gyorko and Dennis Santana to the Bronx Bombers for Jay Bruce and Cam Bedrosian.
March 31, 2021 - Day Two Waiver Signings: The Harlingen Aztecs claimed Roberto Osuna. Unrestricted Free Agent Signings: The California Coolers added Jake Noll and released Matt Thaiss.
March 30, 2021 - Day One Waiver Signings: The San Francisco Seals picked up Keone Kela. The Batavia Muckdogs added Franklin Barreto and released Javy A. Guerra. The Central Valley Heat inked Luis A. Garcia. The Harlingen Aztecs signed Tim Hill. The Kodiak Aces picked up Domingo Santana. The Pennsylvania Sluggers picked up Derek Fisher and cut Greg Allen. Unrestricted Free Agent Signings: The Kodiak Aces signed Tzu-Wei Lin. The Batavia Muckdogs added Josh Sborz, Rex Brothers, Travis Bergen, Domingo Tapia and Ronald Torreyes; waived Dereck Rodriguez, Roberto Osuna, Mike Morin, Matt Magill and Luis Perdomo. The St. Charles Saints inked JP Feyereisen. The Jackson Holy Cows signed Andy Young and dropped Sean Rodriguez.
March 30, 2021 - The Kentucky Pillbillies have moved into Coors Field.
March 30, 2021 - The Bronx Bombers picked up Scott Alexander and Mike Kickham.
March 29, 2021 - The Andes Mountaineers added Brady Lail. The Batavia Muckdogs inked Thairo Estrada.
March 28, 2021 - The Minnesota Mudhens inked Mark Mathias and Cody Ponce. The Harlingen Aztecs signed Keury Mella, Kendall Graveman and Jesus Tinoco. The Assateague Stallions picked up Cole Sulser and Aaron Fletcher. The Tucson Lizard Kings added Tyler Heineman. The San Diego Tigersharks claimed Nabil Crismatt. The River City Vipers signed Andrew Velasquez and Jake Woodford.
March 27, 2021 - The San Diego Tigersharks signed unrestricted free agent Cionel Perez. The California Coolers picked up UFA's Luis Basabe, Brandon Leibrandt, Patrick Weigel, Jonathan Davis and Erik Kratz. The Jackson Holy Cows added Ramon Urias.
March 27, 2021 - The SouthWest Roughnecks dealt Matt Shoemaker, Michael Wacha and SWR's #6-2022 to the Dobson Ranch Bashers for DRB's #2-2022 and DRB's #4-2022.
March 27, 2021 - The Arizona Arrows sent ARA's #5-2022 to the Central Valley Heat for CVH's #6-2021, CVH's #7-2021 and CVH's #8-2021.
March 27, 2021 - The Kodiak Aces traded KDA's #3-2021 to the Arizona Arrows for ARA's #2-2022.
March 21, 2021 - The California Coolers acquired Cam Gallagher and Elias Diaz from the Minnesota Mudhens for Logan Allen, Sean Reid-Foley and CAC's #3-2021.
March 21, 2021 - The River City Vipers dealt Andrew Stevenson and RCV's #5-2021 to the Arizona Arrows for Jordan Lyles.
March 20, 2021 - The Arizona Arrows shipped ARA's #6-2021 and ARA's #8-2022 to the San Francisco Seals for Sandy Leon.
March 17, 2021 - The Arizona Arrows traded ARA's #7-2021 to the St. Charles Saints for Jeff Mathis.
February 13, 2021 - The River City Vipers sent RCV's #4-2022 to the Dobson Ranch Bashers for Austin Voth.
February 13, 2021 - The Dobson Ranch Bashers acquired KYP's #4-2021 from the Kentucky Pillbillies for Niko Goodrum.
February 11, 2021 - The River City Vipers shipped Corey Kluber to the Tucson Lizard Kings for Jon Gray.
January 25, 2021 - The Arizona Arrows traded TLK's #6-2021 and ARA's #3-2022 to the Kentucky Pillbillies for Johnny Cueto.
January 18, 2021 - The Arizona Arrows dealt Austin Barnes and DJ Stewart to the Assateague Stallions for Charlie Morton, Gio Gonzalez and AST's #5-2021.