| Week | Add | Drop |
| Pre-Season |
Round 1: OF Aaron Hicks - LAA Round 2: RP Tyler Kinley - Col Round A: SP Nick Lodolo - Cin |
Round A: C Yasmani Grandal - Pit |
| Week 1 |
Round 2: 3B Trey Lipscomb - Was | |
| Week 2 |
Round 1: SP Paul Blackburn - Oak Round 2: SS Tyler Freeman - Cle | |
| Week 3 |
Round 1: RP Kevin Ginkel - Ari Round 2: SS Gavin Lux - LAD |
Round 2: RP Tyler Kinley - Col |
| Week 4 |
Round 1: OF Andy Pages - LAD |
Round 1: C Yan Gomes - ChN |
| Week 5 |
Round 1: OF Wilyer Abreu - Bos Round 2: 2B Rob Refsnyder - Bos |
Round 1: SP Jose Quintana - NYN Round 2: OF Aaron Hicks - LAA |
| Week 6 |
Round 1: RP Hector Neris - ChN Round 2: 3B Bryan Ramos - ChA |
Round 1: SP Trevor Rogers - Mia Round 2: SS Gavin Lux - LAD |
| Week 7 |
Round 1: SP Robert Gasser - Mil Round 2: 3B Brett Harris - Oak |
Round 1: RP Kevin Ginkel - Ari Round 2: SP Logan Allen - Cle |
| 1st Team | 2nd Team |
| Pre-Season | |
| Vallejo Seaweed | The Plantation |
|
DH
J.D. Martinez
NYN |
Round 6, 2nd Pick (C Logan O'Hoppe LAA) |
| Pre-Season | |
| Vallejo Seaweed | IN THE GAP |
|
Round 4, 6th Pick (SP Tanner Bibee Cle) |
3B
Noelvi Marte
Cin |
| Pre-Season | |
| Vallejo Seaweed | Bedlam at the Bank |
|
Round 5, 6th Pick (SP Bryce Miller Sea) |
OF
Pete Crow-Armstrong
ChN |
| Pre-Season | |
| Vallejo Seaweed | The Plantation |
|
RP
Camilo Doval
SF Round 10, 6th Pick (SP Andrew Abbott Cin) |
Round 5, 2nd Pick (OF Jung Hoo Lee SF) |
| Pre-Season | |
| Vallejo Seaweed | Dodgers |
|
Round 5, 2nd Pick (OF Jung Hoo Lee SF) Round 2, 6th Pick (SP Carlos Rodon NYA) |
SP
Paul Skenes
Pit OF Dylan Crews Was |
| Pre-Season | |
| Vallejo Seaweed | IN THE GAP |
|
Round 8, 6th Pick (SP Yu Darvish SD) |
SP
Shane Bieber
Cle |
| Pre-Season | |
| Vallejo Seaweed | Dodgers |
|
Round 6, 2nd Pick (C Logan O'Hoppe LAA) |
SS
Anthony Volpe
NYA |
| Pre-Season | |
| Vallejo Seaweed | Ft Myers Bull Sharks |
|
Round 13, 6th Pick (SP Bryce Elder Atl) |
Round 19, 1st Pick (OF Will Benson Cin) Round 16, 7th Pick (SP Tylor Megill NYN) Round 17, 7th Pick (SP Trevor Rogers Mia) Round 18, 7th Pick (SP Logan Allen Cle) |
| Week 6 | |
| Vallejo Seaweed | IN THE GAP |
|
RP
Raisel Iglesias
Atl |
1B
Michael Busch
ChN OF Pete Crow-Armstrong ChN |