The Mandan baseball team provided the only upset on Day 1 of the West Region Tournament in Williston, N.D. at Aafedt Stadium on May 24.
No. 5 seeded Braves defeated No. 4 seeded Jamestown, 5-0.
The other top seeds — Century, Minot and Williston — all advanced with ease.
Century won over Bismarck high, 10-0.
Williston topped Legacy, 10-3.
Minot defeated Dickinson, 4-3