Century softball defeated Minot to maintain its lead over the WDA, while Mandan and Legacy settled for splits with Jamestown and Williston, respectively, on Tuesday night.
The Patriots beat the Majettes 7-1 in the first game and 10-4 in the second game.
Mandan lost the first game to Jamestown 12-5 but earned an 11-8 win in game two.
Legacy beat Williston in a game one slugfest 12-10, but the Coyotes denied the Sabers a sweep by taking game two 5-4.