| Thursday, April 9th, 1981 |
| Received C Bubba Cole from Triple A Welland. |
| Received 1B Chase O'Halloran from Triple A Welland. |
| Received 2B Roland Weeks from Triple A Welland. |
| Received 3B Jorge Ramírez from Triple A Welland. |
| Received LF Roy Williams from Major League Level Washington. |
| Received RF Pat Graves from Major League Level Washington. |
| Received RF Justin Pope from Triple A Welland. |
| Received LF Clint Nelson from Triple A Welland. |
| Received RF Félix González from Triple A Welland. |
| Demoted CF Bill Christensen to Single A Laguna Beach. |
| Demoted LF Greg Turner to Single A Laguna Beach. |
| Demoted LF Carlos Miller to Single A Laguna Beach. |
| Demoted 1B Chase O'Halloran to Single A Laguna Beach. |
| Demoted RF Mark Horne to Single A Laguna Beach. |
| Demoted SS Eric Nicholson to Single A Laguna Beach. |
| Demoted 2B Garrett McCullough to Single A Laguna Beach. |
| Demoted 2B Steven Bouwmeester to Single A Laguna Beach. |
| Demoted C Dave Erwin to Single A Laguna Beach. |
| Demoted RF Luis Cuellar to Single A Laguna Beach. |
| Promoted SP Alex Sweeney to Triple A Welland. |
| Promoted SP Will Kelley to Triple A Welland. |
| Promoted CF Félix González to Triple A Welland. |
| Promoted RF Justin Pope to Triple A Welland. |
| Received MR Lorenzo De La Torre from Triple A Welland. |
| Received MR Freddy Rosales from Triple A Welland. |
| Received C Ronald Hutchinson from Single A Laguna Beach. |
| Received 1B Chase O'Halloran from Single A Laguna Beach. |
| Received CF Moo-hyun Kim from Triple A Welland. |
| Received RF Cecil Carr from Triple A Welland. |
| Demoted C Dave White to Single A Laguna Beach. |
| Demoted RF James Miller to Single A Laguna Beach. |
