Behind a 0-0 record over the past week,
Purvis made the biggest jump in the national rankings, all the way from 12 to 13.
First place in the league belongs to the Tornadoes, which have compiled a 20-4 overall record to go with their 9-1 league record.
Columbia is in second place, 2.00 games behind with a 7-3 record in league play.
Purvis's pitching staff dominated this week, allowing only nine hits and zero walks, both of which led the league. On the season, the Tornadoes have allowed just 95 hits, while striking out 192 batters.
Chase Smith leads the Tornadoes with 60 strikeouts in 39 innings.
