The Winter Meetings have become synonymous with flurries of transactions, including a few blockbuster trades. Those blockbuster typically include a team looking to compete in the upcoming season, but the prospects going the other way can also set up a team for years to come.
To help keep track of all the prospects who have been traded since the offseason began, MLBPipeline.com is compiling a running tally of all Top 30 prospects who have changed hands, and where they land on their new clubs' Top 30 lists.
Jan. 11
Mariners trade OF Mallex Smith, IF Carlos Vargas and No. 13 LHP Ryan Yarbrough to Rays for LHP Drew Smyly.
Yarbrough -- No. 16 on Rays' Top 30
Mariners trade LHPs No. 5 Luiz Gohara and No. 15 Thomas Burrows to Braves for OF Mallex Smith and RHP Shae Simmons.
Gohara -- No. 12 on Braves' Top 30
Burrows -- unranked on Braves' Top 30
Jan. 3
D-backs trade No. 7 OF/1B Peter O'Brien to Royals for RHP Sam Lewis.
O'Brien -- No. 24 on Royals' Top 30
Dec. 10
Angels trade No. 20 RHP Kyle McGowin and RHP Austin Adams to Nationals for INF Danny Espinosa:
McGowin -- Unranked on Nationals' Top 30
Dec. 8
Rangers trade No. 15 RHP Luke Jackson to Braves for RHP Tyrell Jenkins and LHP Brady Feigl:
Jackson -- No. 23 on Braves' Top 30
Angels trade RHP Justin Haley to Padres for cash considerations. Twins trade RHP Miguel Diaz to Padres for Haley:
Diaz -- No. 21 on Padres' Top 30
Reds trade C Luis Torrens to Padres for INF Josh VanMeter and cash considerations:
Torrens -- No. 23 on Padres' Top 30
Dec. 7
Nationals trade No. 1 RHP Lucas Giolito, No. 3 RHP Reynaldo Lopez and No. 6 RHP Dane Dunning to White Sox for OF Adam Eaton:
Giolito -- No. 2 on White Sox Top 30
Lopez -- No. 4 on White Sox Top 30
Dunning -- No. 10 on White Sox Top 30
Dec. 6
Red Sox trade No. 1 2B/3B Yoan Moncada, No. 5 RHP Michael Kopech, No. 8Luis Alexander Basabe and No. 28Victor Diaz to White Sox for RHP Chris Sale:
Moncada -- No. 1 on White Sox Top 30
Kopech -- No. 3 on White Sox Top 30
Basabe -- No. 9 on White Sox Top 30
Diaz -- Unranked on White Sox Top 30
Red Sox trade No. 12 SS Mauricio Dubon, No. 22 RHP Josh Pennington and INF Travis Shaw for RHP Tyler Thornburg:
Dubon -- No. 9 on Brewers' Top 30
Pennington -- Unranked on Brewers' Top 30
Dec. 2
Nationals trade No. 23 RHP Pedro Avila for C Derek Norris:
Avila -- Unranked on Padres' Top 30
Dec. 1
Royals trade No. 22 RHP Brooks Pounders to Angels for RHP Jared Ruxer:
Pounders -- No. 13 on Angels' Top 30
Braves trade RHP Chris Ellis, RHP John Gant and No. 29 2B Luke Dykstra to Cardinals for LHP Jaime Garcia:
Ellis -- No. 24 on Cardinals' Top 30
RHP John Gant -- No. 27 on Cardinals' Top 30
Dykstra -- Unranked on Cardinals' Top 30
Nov. 28
Braves trade No. 20 RHP Max Povse and No. 26 RHP Rob Whalen to Mariners for No. 6 OF Alex Jackson and PTBNL:
RHP Max Povse -- No. 10 on Mariners' Top 30
RHP Rob Whalen -- No. 14 on Mariners' Top 30
OF Alex Jackson -- No. 13 on Braves' Top 30
Nov. 23
Phillies trade No. 25 RHP Jimmy Cordero for PTBNL:
Cordero -- Unranked on Nationals' Top 30
D-backs trade No. 21 OF Mitch Haniger, SS/2B Jean Segura and LHP Zac Curtis for SS Ketel Marte and RHP Taijuan Walker:
Haniger -- No. 15 on Mariners' Top 30
Nov. 18
Yankees trade LHP James Pazos to Mariners for RHP Zack Littell:
Pazos -- No. 29 on Mariners' Top 30
Littell -- Unranked on Yankees' Top 30
Rays trade No. 20 3B/OF/1B Richie Shaffer and SS Taylor Motter to Mariners for No. 22 RHP Dylan Thompson, RHP Andrew Kittredge and 1B Dalton Kelly:
Shaffer -- No. 17 on Mariners' Top 30
Thompson -- No. 30 on Rays' Top 30
Kittredge -- Unranked on Rays' Top 30 
Kelly -- Unranked on Rays' Top 30
Nov. 17
Astros trade No. 7 RHP Albert Abreu and RHP Jorge Guzman to Yankees for C Brian McCann:
Abreu -- No. 10 on Yankees' Top 30
Guzman -- Unranked on Yankees' Top 30
Nov. 12
Mariners trade No. 18 RHP Paul Blackburn to Athletics for 3B Danny Valencia:
Blackburn -- No. 19 on Athletics' Top 30
Nov. 3
Angels trade No. 8 RHP Victor Alcantara for OF Cameron Maybin:
Alcantara -- No. 23 on Tigers' Top 30