LITCHFIELD PARK, ARIZ. — Senior Peter Williamson (Hanover, N.H.) is tied for 19th with a 1-over-par 72 at the inaugural Patriot All-America Invitational on the Gold Course at The Wigwam in Litchfield Park, Ariz. after Wednesday's opening round.

Brooks Koepka, a senior at Florida State, fired a four-under-par 67 to take the first-round lead. Weather and course conditions were near perfect on the par-71, 7,006-yard Gold Course. Williamson shot a 36 on the front and kept pace with a 36 on the back to finish the day four shots off the lead.

Round two of the tournament starts at 9:30 a.m. local time with Williamson teeing off at 10:40 a.m. on the first hole. The final round of the championship takes place on Friday.