Astros Roster & Staff
Transactions
| Date | Transaction |
| 08/30/20 | Houston Astros optioned 1B Taylor Jones to Astros Alternate Training Site. |
| 08/29/20 | Houston Astros optioned 1B Taylor Jones to Astros Alternate Training Site. |
| 08/29/20 | Houston Astros optioned RHP Chase De Jong to Astros Alternate Training Site. |
| 08/29/20 | Houston Astros activated 2B Aledmys Diaz from the 10-day injured list. |
| 08/29/20 | Houston Astros selected the contract of RHP Luis Garcia from Astros Alternate Training Site. |
| 08/29/20 | Houston Astros activated SS Aledmys Diaz from the 10 day injured list. |
| 08/29/20 | Houston Astros recalled Taylor Jones from Astros Alternate Training Site. |
| 08/29/20 | Houston Astros activated SS Aledmys Diaz from the 10-day injured list. |
| 08/26/20 | Houston Astros optioned RHP Humberto Castellanos to Astros Alternate Training Site. |
| 08/25/20 | Houston Astros recalled Humberto Castellanos from Astros Alternate Training Site. |
| 08/23/20 | Houston Astros selected the contract of Chase De Jong from Astros Alternate Training Site. |
| 08/23/20 | Houston Astros optioned RHP Humberto Castellanos to Astros Alternate Training Site. |
| 08/23/20 | Houston Astros transferred OF Yordan Alvarez from the 10-day injured list to the 60-day injured list. Right knee discomfort. |
| 08/22/20 | Houston Astros placed RHP Josh James on the 10-day injured list. Left hip discomfort. |
| 08/22/20 | Houston Astros activated LF Michael Brantley from the 10-day injured list. |
| 08/20/20 | Houston Astros recalled Cionel Perez from Astros Alternate Training Site. |
| 08/20/20 | Houston Astros placed 3B Alex Bregman on the 10-day injured list. Right hamstring discomfort. |
| 08/18/20 | Houston Astros recalled Taylor Jones from Astros Alternate Training Site. |
| 08/18/20 | Houston Astros placed OF Yordan Alvarez on the 10-day injured list retroactive to August 16, 2020. Right knee discomfort. |
| 08/16/20 | Houston Astros recalled 2B Jack Mayfield from Astros Alternate Training Site. |
| 08/15/20 | Joe Biagini roster status changed by Houston Astros. |
| 08/15/20 | Houston Astros optioned RHP Brandon Bailey to Astros Alternate Training Site. |
| 08/15/20 | Houston Astros placed LF Michael Brantley on the 10-day injured list retroactive to August 12, 2020. Right quad discomfort. |
| 08/14/20 | Houston Astros optioned RHP Nivaldo Rodriguez to Astros Alternate Training Site. |
| 08/14/20 | Houston Astros activated OF Yordan Alvarez from the 10-day injured list. |
| 08/11/20 | Houston Astros activated LHP Brooks Raley. |
| 08/11/20 | Houston Astros activated P Brooks Raley. |
| 08/11/20 | Houston Astros optioned RHP Carlos Sanabria to Astros Alternate Training Site. |
| 08/11/20 | Houston Astros activated LHP Brooks Raley. |
| 08/10/20 | Cincinnati Reds traded LHP Brooks Raley to Houston Astros for Player To Be Named Later. |
| 08/09/20 | Houston Astros transferred RHP Roberto Osuna from the 10-day injured list to the 60-day injured list. Right elbow soreness. |
| 08/06/20 | Houston Astros optioned 2B Jack Mayfield to Astros Alternate Training Site. |
| 08/06/20 | Houston Astros selected the contract of RHP Chase De Jong from Sugar Land Skeeters. |
| 08/06/20 | Houston Astros placed LHP Kent Emanuel on the restricted list. |
| 08/06/20 | Houston Astros transferred RHP Austin Pruitt from the 10-day injured list to the 60-day injured list. Hairline fracture in his right elbow. |
| 08/06/20 | Houston Astros optioned RHP Bryan Abreu to Astros Alternate Training Site. |
| 08/02/20 | Houston Astros selected the contract of Humberto Castellanos from Astros Alternate Training Site. |
| 08/02/20 | Houston Astros placed RHP Roberto Osuna on the 10-day injured list. Right elbow soreness. |
| 08/01/20 | Houston Astros placed RHP Chris Devenski on the 10-day injured list retroactive to July 29, 2020. Right elbow soreness. |
| 08/01/20 | Houston Astros selected the contract of Carlos Sanabria from Astros Alternate Training Site. |