| Sunday, October 9th , 1910 | | SP Speed Martin has executed his contract year option. | | 1B Roger Connor retired from professional baseball. | | Friday, August 12th , 1910 | | Signed SP Art Nehf to a 1-year contract extension worth a total of $1,300. | | Friday, July 29th , 1910 | | Signed RP Al Gerheauser to a 1-year contract extension worth a total of $900. | | Saturday, July 9th , 1910 | | Signed CF Kevin Kiermaier to a 4-year contract extension worth a total of $7,150. | | Monday, June 20th , 1910 | | Placed SP Ed Crane on the 14-day injured list, retroactive to 06/17/1910. | | Purchased the contract of RP Austin Warren from Triple A Little Rock. | | Thursday, June 16th , 1910 | | Signed C Buster Posey to a 4-year contract extension worth a total of $13,760. | | Monday, May 30th , 1910 | | Placed SP Dick Fowler on the 14-day injured list, retroactive to 05/27/1910. | | Purchased the contract of SS Monte Ward from Triple A Little Rock. | | Friday, May 27th , 1910 | | Signed SS Monte Ward to a 3-year contract extension worth a total of $4,700. | | Monday, April 4th , 1910 | | LF Fred Mann was designated for assignment and placed on waivers. | |
