Effective Round 3
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 Sal 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.
Effective Round 1
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 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.
During the Draft
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.
Before the Draft
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.