Zach Bost and Gage Thompson led Jefferson with 6-0, 6-1 victories in singles play and a 3-2 team win against Calhoun in the first round of the Class AA playoffs on Tuesday in Rome. The Dragons’ No. 2 doubles duo of Brandon Clabo and Austin Pratt came back from a set down for the Dragons to win 5-7, 6-4, 7-5.