D-backs Roster & Staff
Transactions
| Date | Transaction |
| 05/25/10 | Arizona Diamondbacks placed 2B Tony Abreu on the 15-day disabled list retroactive to May 24, 2010. Left wrist sprain. |
| 05/25/10 | Arizona Diamondbacks recalled Ryan Roberts from Reno Aces. |
| 05/25/10 | 3B Kory Casto assigned to Mobile BayBears from Arizona Diamondbacks. |
| 05/24/10 | Arizona Diamondbacks signed free agent 3B Kory Casto to a minor league contract. |
| 05/21/10 | Arizona Diamondbacks sent Blaine Boyer outright to Reno Aces. |
| 05/20/10 | RHP Luis Ayala assigned to Reno Aces from Arizona Diamondbacks. |
| 05/19/10 | Arizona Diamondbacks signed free agent RHP Luis Ayala to a minor league contract. |
| 05/19/10 | Arizona Diamondbacks optioned Cole Gillespie to Reno Aces. |
| 05/19/10 | Arizona Diamondbacks recalled RF Gerardo Parra from Reno Aces. |
| 05/18/10 | Arizona Diamondbacks designated RHP Blaine Boyer for assignment. |
| 05/18/10 | Arizona Diamondbacks signed free agent RHP Juan Valdez to a minor league contract. |
| 05/18/10 | Arizona Diamondbacks recalled Billy Buckner from Reno Aces. |
| 05/17/10 | Cleveland Indians traded RHP Saul Rivera to Arizona Diamondbacks for cash. |
| 05/17/10 | Arizona Diamondbacks released RHP Bob Howry. |
| 05/17/10 | Cleveland Indians traded RHP Saul Rivera to Arizona Diamondbacks for cash. |
| 05/12/10 | Arizona Diamondbacks optioned Daniel Stange to Reno Aces. |
| 05/12/10 | Arizona Diamondbacks recalled Carlos Rosa from Reno Aces. |
| 05/08/10 | Conor Jackson roster status changed by Arizona Diamondbacks. |
| 05/08/10 | Arizona Diamondbacks optioned Gerardo Parra to Reno Aces. |
| 05/03/10 | Arizona Diamondbacks recalled Cesar Valdez from Reno Aces. |
| 05/03/10 | Arizona Diamondbacks optioned Kevin Mulvey to Reno Aces. |
| 05/02/10 | Arizona Diamondbacks optioned Carlos Rosa to Reno Aces. |
| 05/02/10 | Visalia Rawhide Traded SS Rey Navarro to Wilmington Blue Rocks and Kansas City Royals Traded RHP Carlos Rosa to Arizona Diamondbacks. |
| 05/02/10 | Arizona Diamondbacks transferred RHP Leo Rosales from the 15-day disabled list to the 60-day disabled list. |