Pleasantville Native Chelsea Thomas did something yesterday that has not been done in over 20 years at the University of Missouri, that is pitch a conference no-hitter. Thomas threw her 11th career no-hitter and first ever in Big 12 play yesterday when Missouri blanked Oklahoma State 4-0. Thomas struck out 12 Oklahoma State batters and issued just two free passes. The number nine ranked Tigers will continue their series with the Cowgirls today.