| 1988 Trades | ||||||
| 1 | To Tempe: | Rochester's 3rd rd pick in '89 | 1 | To Rochester: | Great Lakes' 3rd rd pick in '88 | |
| 2 | To Baltimore: | Jesse Barfield | 2 | To Portland: | Nick Esasky | |
| 3 | To Great Lakes: | Andres Thomas | 3 | To Tempe: | Great Lakes' 4th rd pick in '89 | |
| 4 | To Texas: | San Francsico's 3rd rd pick in '89 | 4 | To San Francisco: | Fred Lynn, and Texas' 8th and 9th rd picks in '88 | |
| 5 | To Winter Haven: | John Cangelosi & Manchester's 3rd rd pick in '89 | 5 | To Manchester: | Steve Bedrosian | |
| 6 | To San Francisco: | Mike Schmidt | 6 | To Erie: | San Francisco's 6th rd pick in '89 | |
| 7 | To Texas: | Ron Jones and Montreal's 3rd rd pick in '89 | 7 | To Montreal: | Claudell Washington | |
| 8 | To Rochester: | San Francisco's 8th rd pick in '89 | 8 | To San Francisco: | Rafael Belliard and Rochester's 10th rd pick in '89 | |
| 9 | To San Francisco: | Joe Price and Manchester's 11th rd pick in '89 | 9 | To Manchester: | San Francisco's 7th rd pick in 1989. | |
| 10 | To Chicago: | Jerry Reuss and Bob Knepper | 10 | To Texas: | Chicago's 4th rd pick in '89 | |
| 11 | To Albuquerque: | Bobby Meacham, Larry Owen, and Columbus' 1st & 3rd rd picks in '89 | 11 | To Columbus: | Dennis Rasmussen, Bob Horner, and Dave Leiper | |