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| 2003-04-15 10:11:58 | Jacksonville Speed | | Drop | Wiley Middleton | |
| 2003-04-15 09:47:56 | Cleveland Weasels | | Drop | Thad Rapp | |
| 2003-04-09 17:00:00 | Louisville Colonels | 1st round pick in season 04 | Acquired via trade | 1st round pick in season 04 | San Diego Sabercats |
| 2003-04-09 17:00:00 | Louisville Colonels | Travis Winston | Acquired via trade | Rusty Thieneman | San Diego Sabercats |
| 2003-04-09 17:00:00 | Louisville Colonels | Richard Gividen | Acquired via trade | | San Diego Sabercats |
| 2003-04-08 17:00:00 | Los Angeles Cacti | 2nd round pick in season 04 | Acquired via trade | Darrick Harned | Louisville Colonels |
| 2003-04-07 11:00:00 | Boston Bannerman | 1st round pick in season 04 | Acquired via trade | Alan Karnes | San Francisco Golden Gators |
| 2003-04-07 11:00:00 | Boston Bannerman | Johnnie Riggins | Acquired via trade | | San Francisco Golden Gators |
| 2003-04-07 07:00:00 | Calgary Cougars | Nelson Kiefer | Acquired via trade | Linus Wooldridge | South Dakota Blackhawks |
| 2003-04-06 06:00:00 | San Antonio Brothas | 1st round pick in season 04 | Acquired via trade | 1st round pick in season 04 | Memphis Express |
| 2003-04-06 06:00:00 | Calgary Cougars | 2nd round pick in season 04 | Acquired via trade | | Jacksonville Speed |
| 2003-04-05 17:00:00 | Sacramento Rainbow Trout | Rodney Seaman | Acquired via trade | 1st round pick in season 04 | San Antonio Brothas |
| 2003-04-05 07:00:00 | Boston Bannerman | 1st round pick in season 04 | Acquired via trade | Justin Van | Philadelphia Assassins |
| 2003-04-04 17:00:00 | Minneapolis Bricklayers | 1st round pick in season 04 | Acquired via trade | Alan Kerr | New Orleans Hurricanes |
| 2003-04-04 17:00:00 | Minneapolis Bricklayers | 2nd round pick in season 05 | Acquired via trade | Eric Merriweather | New Orleans Hurricanes |
| 2003-04-04 17:00:00 | Santo Domingo Lazy Dogs | 2nd round pick in season 04 | Acquired via trade | | Detroit Gear Daddies |
| 2003-04-04 16:00:00 | Minneapolis Bricklayers | Dejuan OReilly | Acquired via trade | Matt Raveling | Cleveland Weasels |
| 2003-04-04 16:00:00 | Minneapolis Bricklayers | Dwayne Kahl | Acquired via trade | Jack Simms | Cleveland Weasels |
| 2003-04-04 16:00:00 | Minneapolis Bricklayers | Curtis Harley | Acquired via trade | Marques Clemons | Cleveland Weasels |
| 2003-04-03 16:00:00 | Sacramento Rainbow Trout | Rayshard Edens | Acquired via trade | Kareem Kendrick | Philadelphia Assassins |
| 2003-04-03 16:00:00 | Sacramento Rainbow Trout | 1st round pick in season 04 | Acquired via trade | | Philadelphia Assassins |
| 2003-04-03 16:00:00 | Milwaukee Sundancers | Neil Christensen | Acquired via trade | | Sacramento Rainbow Trout |
| 2003-04-03 16:00:00 | Philadelphia Assassins | Douglas Sandage | Acquired via trade | | Milwaukee Sundancers |
| 2003-04-03 15:30:00 | Philadelphia Assassins | 1st round pick in season 04 | Acquired via trade | Anton Queen | Atlanta Eels |
| 2003-04-03 15:00:00 | Los Angeles Cacti | 2nd round pick in season 04 | Acquired via trade | Jaime Hardin | Atlanta Eels |