| | | Thursday, September 14th, 1972 | | Purchased the contract of C S. Yeager from Triple A Portland. |
| Wednesday, August 16th, 1972 | | Placed 1B J. Mayberry on the 15-day disabled list. | | Purchased the contract of RF R. Zisk from Triple A Portland. |
| Tuesday, August 1st, 1972 | | Placed MR B. Lersch on the 60-day disabled list. | | Purchased the contract of MR C. Zachary from Triple A Portland. |
| Sunday, July 16th, 1972 | | Placed SP B. Moose on the 15-day disabled list. | | Purchased the contract of SP R. Nelson from Triple A Portland. |
| Thursday, June 1st, 1972 | | Placed CF R. Monday on the 15-day disabled list. | | Purchased the contract of CF G. Foster from Triple A Portland. |
| Sunday, May 21st, 1972 | | Signed 3B P. Rose to a 3-year contract extension worth a total of $4,950,000. |
| Sunday, April 16th, 1972 | | Traded 34-year-old shortstop R. Hansen to the Cleveland Barons, getting a 3rd round draft pick in return. |
| Wednesday, March 1st, 1972 | | Drafted CF G. Maddox in the 1972 first-year player draft (Round 2, Pick 4, 16th overall Pick). | | Drafted 2B R. Gilbreath in the 1972 first-year player draft (Round 4, Pick 4, 40th overall Pick). | | Drafted SP L. McGlothen in the 1972 first-year player draft (Round 4, Pick 12, 48th overall Pick). | | Drafted C S. Yeager in the 1972 first-year player draft (Round 5, Pick 4, 52nd overall Pick). | | Drafted SS M. Kelleher in the 1972 first-year player draft (Round 5, Pick 5, 53rd overall Pick). |
| Monday, November 1st, 1971 | | SP M. Hedlund received a 1-year contract through automatic renewal worth a total of $1,500,000. | | C T. Munson received a 1-year contract through automatic renewal worth a total of $2,300,000. | | SP B. Moose received a 1-year contract through automatic renewal worth a total of $2,400,000. | | SP T. Griffin received a 1-year contract through automatic renewal worth a total of $300,000. | | MR J. Ray received a 1-year contract through automatic renewal worth a total of $1,500,000. | | 1B J. Mayberry received a 1-year contract through automatic renewal worth a total of $1,500,000. | | SS M. Belanger received a 1-year contract through automatic renewal worth a total of $750,000. | | SP D. Bosman received a 1-year contract through automatic renewal worth a total of $1,500,000. | | C R. Hundley received a 1-year contract through automatic renewal worth a total of $300,000. | | MR B. Lersch received a 1-year contract through automatic renewal worth a total of $750,000. | | MR G. Culver received a 1-year contract through automatic renewal worth a total of $750,000. | | CF R. Monday received a 1-year contract through automatic renewal worth a total of $1,000,000. | | RF R. Zisk received a 1-year contract through automatic renewal worth a total of $750,000. | | SP R. Nelson received a 1-year contract through automatic renewal worth a total of $2,000,000. | | MR V. Romo received a 1-year contract through automatic renewal worth a total of $750,000. | | MR P. Lindblad received a 1-year contract through automatic renewal worth a total of $1,000,000. | | 2B L. Randle received a 1-year contract through automatic renewal worth a total of $500,000. | | 1B L. May received a 1-year contract through automatic renewal worth a total of $750,000. | | RF B. Williams becomes a free-agent. | | 3B D. Evans received a 1-year contract through automatic renewal worth a total of $2,000,000. | | RF J. Lahoud received a 1-year contract through automatic renewal worth a total of $300,000. | | SS T. Foli received a 1-year contract through automatic renewal worth a total of $300,000. | | 2B M. Andrews received a 1-year contract through automatic renewal worth a total of $500,000. | | CF B. Bradford received a 1-year contract through automatic renewal worth a total of $300,000. |
| Friday, October 29th, 1971 | | MR C. Carroll received a 1-year contract through arbitration worth a total of $2,200,000. | | SP F. Jenkins received a 1-year contract through arbitration worth a total of $2,160,000. | | 3B P. Rose received a 1-year contract through arbitration worth a total of $1,400,000. | | SP L. Tiant received a 1-year contract through arbitration worth a total of $1,400,000. |
| Friday, October 8th, 1971 | | 2B B. Moran retires. |
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