Richmond Flying Squirrels
The San Francisco Giants selected Kickham in the sixth round of the 2010 MLB draft. After spending 2010 with the rookie league squad, he spent 2011 with the Augusta Greenjackets. In 2012, he was promoted to the Double-A Richmond Flying Squirrels, where he posted an 11–10 record and a 3.05 earned run average (ERA) in 28 games.