JAMESTOWN, N.D.  (UJ)   Jessica Buck (SR/Burnsville, MN) scored 27 points, pulled down seven rebounds, and dished out five assists, helping the Jimmies to an 85-73 victory over the Mayville State University Comets. The win advances Jamestown to the North Star Athletic Association championship game, where the Jimmies will host Dickinson State at 2 pm Sunday.