Nebraska’s Lauren Thiele put together rounds of 73 and 75 to close the first 36 holes tied atop the leaderboard at the Big O Classic in Omaha on Monday. Thiele, a redshirt sophomore from Wahoo, Neb., shares the tournament lead with Omaha’s Katie Ruge at 148 (+5) heading into Tuesday’s final round on the par-72, 6,019-yard layout at the Oak Hills Country Club.