MLB.com Columnist

Jonathan Mayo

Keeping track of traded prospects

Keeping track of traded prospects

It's been an active offseason, in terms of trades. And while much of the attention might be on the big leaguers moving to help postseason hopefuls improve, many clubs are using this time to build for the future and bolster their farm systems.

To help keep track of all the prospects who have been traded since the offseason began, here is a running tally of all Top 30 prospects who have changed hands, and where they land on their new clubs' Top 30 lists. 

Dec. 28
RHP Rookie Davis -- No. 8 on Reds' Top 30
3B Eric Jagielo -- No. 9 on Reds' Top 30
Yankees trade Davis, Jagielo, 2B Tony Renda and RHP Caleb Cotham for LHP Aroldis Chapman

Dec. 17
RHP Trey Supak -- No. 30 on Brewers' Top 30
Pirates trade Supak and OF Keon Broxton for 1B Jason Rogers

Dec. 16
2B Jose Peraza -- No. 1 on Reds' Top 30
OF Scott Schebler -- No. 13 on Reds' Top 30
RHP Frankie Montas -- No. 4 on Dodgers' Top 30
2B Micah Johnson -- No. 8 on Dodgers' Top 30
OF Trayce Thompson -- No. 16 on Dodgers' Top 30
Dodgers trade Peraza, Schebler, 2B Brandon Dixon to Reds, who sent 3B Todd Frazier to White Sox, who sent Montas, Johnson and Thompson to Dodgers. 

Dec. 12
RHP Mark Appel -- No. 2 on Phillies' Top 30
RHP Thomas Eshelman -- No. 13 on Phillies' Top 30
2B/SS Jonathan Arauz -- No. 18 on Astros' Top 30
Astros trade Appel, Eshelman, RHP Vincent Velasquez and LHP Brett Oberholtzer to Phillies for RHP Ken Giles and Arauz

Dec. 10
Luis Perdomo -- No. 9 on Padres' Top 30
Rockies trade Perdomo for PTBNL or cash considerations

Dec. 10
OF/3B Garin Cecchini -- No. 20 on Brewers' Top 30
Red Sox trade Cecchini for cash considerations

Dec. 10
OF Jabari Blash -- No. 23 on Padres' Top 30
Athletics trade Blash as PTBNL from Dec. 2 deal

Dec. 9
LHP Zack Erwin -- No. 28 on Athletics' Top 30
White Sox trade Erwin and J.B. Wendelken for 3B Brett Lawrie

Dec. 9
RHP Luis Cessa -- No. 19 on Yankees' Top 30
Tigers trade Cessa and RHP Chad Green for LHP Justin Wilson

Dec. 9
SS Dansby Swanson -- No. 1 on Braves' Top 30
RHP Aaron Blair -- No. 4 on Braves' Top 30
D-backs trade Swanson, Blair and OF Ender Inciarte to Atlanta for RHP Shelby Miller and LHP Gabe Speier

Dec. 7
RHP Jonathan Aro -- No. 28 on Mariners' Top 30
Red Sox trade Aro with LHP Wade Miley for RHP Carson Smith and LHP Roenis Elias

Dec. 4
RHP Jose A. Ramirez -- No. 30 on Braves' Top 30
Mariners trade Ramirez for PTBNL and cash

Dec. 2
LHP C.J. Riefenhauser -- No. 27 on Orioles' Top 30
Mariners trade Riefenhauser with OF Mark Trumbo for C Steve Clevenger

LHP Jose Torres -- No. 22 on Padres' Top 30
A's trade Torres with LHP Drew Pomeranz and PTBNL for LHP Marc Rzepczynski and 1B Yonder Alonso

3B/1B Patrick Kivlehan -- No. 18 on Rangers' Top 30
Mariners trade Kivlehan as PTBNL from Nov. 16 deal

Nov. 25
RHP Brendan McCurry -- No. 30 on Astros' Top 30
A's trade McCurry for INF Jed Lowrie

Nov. 20
OF Ramon Flores -- No. No. 30 on Brewers' Top 30
Mariners trade Flores for 2B Luis Sardinas

Nov. 18
2B Javier Betancourt -- No. 20 on Brewers' Top 30
Tigers trade Betancourt for RHP Francisco Rodriguez

Nov. 14
RHP Sam McWilliams -- No. 27 on D-backs' Top 30
Phillies trade McWilliams for RHP Jeremy Hellickson

Nov. 13
OF Manuel Margot -- No. 1 on Padres' Top 30
SS Javier Guerra -- No. 3 on Padres' Top 30
LHP Logan Allen -- No. 18 on Padres' Top 30
2B Carlos Asuaje- - No. 19 on Padres' Top 30
Red Sox trade Margot, Guerra, Allen and Asuaje for RHP Craig Kimbrel

Nov. 12
RHP Enyel De Los Santos -- No. 14 on Padres' Top 30
Mariners trade De Los Santos with SS Nelson Ward for RHP Joaquin Benoit

Nov. 12
LHP Sean Newcomb -- No. 1 on Braves' Top 30
RHP Chris Ellis -- No. 9 on Braves' Top 30
C Jose Briceno -- No. 30 on Angels' Top 30
Angels trade Newcomb, Ellis, with SS Erick Aybar and cash for SS Andrelton Simmons and Briceno

Nov. 5
OF Boog Powell -No. 6 on Mariners' Top 30
Rays trade Powell with RHP Nathan Karns and LHP C.J. Riefenhauser for SS Brad Miller, 1B Logan Morrison and RHP Danny Farquhar

Oct. 24
RHP Trevor Williams -- No. 21 on Pirates' Top 30
Marlins trade Williams for RHP Richard Mitchell

Jonathan Mayo is a reporter for MLB.com. Follow @JonathanMayo on Twitter. This story was not subject to the approval of Major League Baseball or its clubs.