| Player | Position | Team | Years | Amount | Option |
|---|---|---|---|---|---|
| Fernando Abad | RP | Giants | 1 | Minor | |
| Luis Avilan | RP | Mets | 1 | Minor | |
| Jerry Blevins | RP | Athletics | 1 | Minor | |
| Zach Britton | RP (Closer) / RP | Yankees | 3 | $39MM | Club |
| Rex Brothers | RP | Yankees | 1 | Minor | |
| Xavier Cedeno | RP | Cubs | 1 | $900K | |
| Tim Collins | RP | Twins | 1 | Minor | |
| Daniel Coulombe | RP | Yankees | 1 | Minor | |
| Jorge De La Rosa | RP | ||||
| Jake Diekman | RP | Royals | 1 | $2.75MM | Mutual |
| Zach Duke | RP | Reds | 1 | $2MM | |
| Jaime Garcia | RP / SP | Retirement | |||
| Dan Jennings | RP | Angels | 1 | Minor | |
| Francisco Liriano | RP / SP | Pirates | 1 | Minor | |
| Aaron Loup | RP | Padres | 1 | $1.2MM | Club |
| Tyler Lyons | RP | Pirates | 1 | Minor | |
| Andrew Miller | RP (Closer) / RP | Cardinals | 2 | $25MM | Vesting |
| Matt Moore | RP / SP | Tigers | 1 | $2.5MM | |
| Oliver Perez | RP | Indians | 1 | $2.5MM | Vesting |
| Robbie Ross | RP | Reds | 1 | Minor | |
| Zac Rosscup | RP | Mariners | 1 | Unknown | |
| Kyle Ryan | RP / SP | Cubs | 1 | $555K | |
| Marc Rzepczynski | RP | Diamondbacks | 1 | Minor | |
| Hector Santiago | RP / SP | Mets | 1 | Minor | |
| Tony Sipp | RP | Nationals | 1 | $1.25MM | Mutual |
| Pat Venditte | RP / RP | Giants | 1 | $585K | |
| Justin Wilson | RP | Mets | 2 | $10MM |
This free agent tracker covers the time period beginning the day after the World Series ends in 2018, up until the day before Opening Day 2019.
