| | | | | | | | | | |  | Major Transactions |
| | | | Friday, March 1st, 2019 | | Drafted 1B M. Ortíz in the 2019 first-year player draft (Round 1, Pick 12, 12th overall Pick). | | Drafted CF W. Lawrence in the 2019 first-year player draft (Round 2, Pick 12, 24th overall Pick). | | Drafted RF C. Smith in the 2019 first-year player draft (Round 3, Pick 12, 36th overall Pick). | | Drafted RF P. Cervantes in the 2019 first-year player draft (Round 4, Pick 12, 48th overall Pick). | | Drafted CF A. Moreno in the 2019 first-year player draft (Round 5, Pick 12, 60th overall Pick). | | Drafted 1B M. Cox in the 2019 first-year player draft (Round 6, Pick 12, 72nd overall Pick). | | Drafted SS J. Ortíz in the 2019 first-year player draft (Round 7, Pick 12, 84th overall Pick). | | Drafted LF J. Head in the 2019 first-year player draft (Round 8, Pick 12, 96th overall Pick). | | Drafted SP S. Lowery in the 2019 first-year player draft (Round 9, Pick 12, 108th overall Pick). | | Drafted C B. Steib in the 2019 first-year player draft (Round 10, Pick 12, 120th overall Pick). | | Drafted CF D. Torrealba in the 2019 first-year player draft (Round 11, Pick 12, 132nd overall Pick). | | Drafted RF R. Pérez in the 2019 first-year player draft (Round 12, Pick 12, 144th overall Pick). | | Drafted MR G. Xú in the 2019 first-year player draft (Round 13, Pick 12, 156th overall Pick). | | Drafted MR J. Kim in the 2019 first-year player draft (Round 14, Pick 12, 168th overall Pick). | | Drafted SP A. Báez in the 2019 first-year player draft (Round 15, Pick 12, 180th overall Pick). | | Promoted SS N. Chandler to Double A Moose Jaw. | | Promoted 1B A. González to Double A Moose Jaw. | | Promoted 3B B. Barnard to Double A Moose Jaw. |
| Tuesday, August 21st, 2018 | | SP C. Overholt retires. | | 1B M. Guevara retires. | | Pitching Coach S. Milton leaves the team, his contract was not renewed. | | Hitting Coach J. Peńa leaves the team, his contract was not renewed. |
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