Richmond Flying Squirrels
In 2009, with Fresno, Timpner hit .250/.309/.375 with seven home runs and 42 RBI. With the Richmond Flying Squirrels in 2010, he hit .290/.346/.372 with four home runs and 51 RBI. He moved to the Detroit Tigers system for 2011, where he hit .111/.226/.111 in 27 at-bats for the Triple-A Toledo Mud Hens.