FARGO—Five former North Dakota State track and field athletes are entered to compete at the USA Track and Field Olympic Trials to be held July 1-10 in Eugene, Ore. Riley Dolezal (javelin), Leslie Brost (pole vault), Maddie Van Beek (3,000-meter steeplechase), Sierra Rosenau (javelin) and 2012 Olympian Amanda Smock (triple…