Player Pool: All · NL
| Date | Traded | Traded For | Scoring | Pool | Level | | 05/21/2013 | Mike Fiers, RP MIL Jimmy Rollins, SS PHI
| Derek Dietrich, 2B MIA A.J. Burnett, SP PIT
| roto | NL | commish | | 05/21/2013 | Kris Medlen, SP ATL Matt Kemp, CF LAD Lucas Duda, LF NYM David DeJesus, CF CHC Kevin Slowey, SP MIA
| Zack Cozart, SS CIN Sergio Romo, RP SF Justin Upton, LF ATL Mike Fiers, RP MIL Denard Span, CF WAS Dillon Gee, SP NYM
| roto | NL | commish | | 05/21/2013 | Mike Fiers, RP MIL Hanley Ramirez, SS LAD Todd Frazier, 3B CIN
| Mike Minor, SP ATL Jordan Pacheco, 1B COL Josh Beckett, SP LAD
| roto | NL | commish | | 05/20/2013 | Gio Gonzalez, SP WAS
| Mike Fiers, RP MIL Andrelton Simmons, SS ATL
| roto | NL | commish | | 05/20/2013 | Mike Fiers, RP MIL Andrelton Simmons, SS ATL
| Gio Gonzalez, SP WAS
| roto | NL | commish | | 05/20/2013 | Dan Uggla, 2B ATL Ian Stewart, 3B CHC Tim Hudson, SP ATL
| Mike Fiers, RP MIL Ryan Ludwick, LF CIN Cliff Pennington, SS ARI
| roto | NL | commish | | 05/20/2013 | Josh Beckett, SP LAD
| Mike Fiers, RP MIL
| roto | NL | commish | | 05/19/2013 | Mike Fiers, RP MIL Matt Belisle, RP COL
| Francisco Liriano, SP PIT Jorge De La Rosa, SP COL
| roto | NL | commish | | 05/19/2013 | Mike Fiers, RP MIL
| Tyler Skaggs, SP ARI
| roto | NL | commish | | 05/19/2013 | Mike Fiers, RP MIL
| Jim Henderson, RP MIL
| roto | NL | commish | | 05/19/2013 | Carlos Gomez, CF MIL Carlos Gonzalez, LF COL Stephen Strasburg, SP WAS Kenley Jansen, RP LAD A.J. Burnett, SP PIT
| Matt Reynolds, RP ARI Shelby Miller, SP STL Tony Cingrani, SP CIN Nolan Arenado, 3B COL Mike Fiers, RP MIL Bryce Harper, LF WAS Johnny Cueto, SP CIN
| roto | NL | commish | | 05/18/2013 | Delmon Young, RF PHI Brett Jackson, CF CHC Wade LeBlanc, SP MIA
| Ted Lilly, SP LAD Mike Fiers, RP MIL Heath Bell, RP ARI
| roto | NL | commish | | 05/18/2013 | Giancarlo Stanton, RF MIA Jim Henderson, RP MIL Adam LaRoche, 1B WAS
| Mike Fiers, RP MIL Starlin Castro, SS CHC Brandon Beachy, SP ATL
| h2h | NL | commish | | 05/18/2013 | Matt Adams, 1B STL Christian Yelich, LF MIA Erik Kratz, C PHI Mike Fiers, RP MIL Trevor Rosenthal, RP STL
| Shaun Marcum, SP NYM Rafael Soriano, RP WAS Yadier Molina, C STL Corey Hart, 1B MIL Kolten Wong, 2B STL
| roto | NL | commish | | 05/14/2013 | Johnny Cueto, SP CIN
| Mike Fiers, RP MIL Chris Heisey, LF CIN Michael Wacha, SP STL
| roto | NL | commish | | 05/13/2013 | Mike Fiers, RP MIL
| Joe Mahoney, 1B MIA Ian Stewart, 3B CHC
| roto | NL | commish | | 05/12/2013 | Carlos Martinez, RP STL Darwin Barney, 2B CHC
| Chase Utley, 2B PHI Mike Fiers, RP MIL
| roto | NL | commish | | 05/12/2013 | Mike Fiers, RP MIL Patrick Corbin, SP ARI
| Hyun-Jin Ryu, SP LAD Clayton Kershaw, SP LAD
| roto | NL | commish | | 05/12/2013 | Mike Fiers, RP MIL Eric Young, RF COL Clayton Kershaw, SP LAD
| Troy Tulowitzki, SS COL Brandon McCarthy, SP ARI
| roto | NL | commish | |
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