Overfelt currently leads the league with a 21-4 record overall and a 18-3 mark during league play.
Gunderson is in second place, one game behind with a 17-4 record in league play.
The Royals boasted the best pitching over the past week, holding opponents to the league's fewest hits and issuing the fewest walks. On the season, Overfelt has allowed just 119 hits, while striking out 213 batters.
Jeider Rincon leads Overfelt with 60 strikeouts in 37 innings pitched.
The Royals's
Leo Saldivar led the league in strikeouts this week with three. With 26 strikeouts this year so far, he ranks ninth in the league.