 Kimball remained with the Lake Monsters in 2007.He accrued a record of 3 wins and 6 losses and a 4.20 ERA over 61 innings, consisting of 13 starts and one appearance in relief.After an unimpressive 2008 season with the low A Hagerstown Suns, where he compiled a 6-8 record and a 5.05 ERA he was promoted to the Potomac Nationals (high A) and converted to a reliever.