The top amateur golfers from New Hampshire have some work to do if they plan to make the cut today in the 112th United States Amateur Championship in Cherry Hills Village, Colo.

None of the five Granite State golfers who teed off in the first round Monday finished under par.

James Pleat of Nashua, who missed the cut by one stroke last year in the U.S. Amateur Championship in Erin, Wisc., is within striking range with a first day, two-over-par 72 round.

The Dartmouth College senior is one stroke ahead of New Castle's Nick McLaughlin, who qualified for the U.S. Amateur in the 36-hole sectionals at TPC River Highlands in Cromwell, Conn.

Peter Williamson of Hanover, who was a semifinalist in the Western Amateur, dug himself a deep hole with a five-over-par 76, one stroke better than 2011 U.S. Junior Amateur runner-up Chelso Barrett of Keene.

Williamson, the three-time Ivy League champion from Dartmouth College, won the North-South Amateur Tournament in Pinehurst, N.C., earlier this summer.

A nice storyline to this season's tournament is the appearance of 56-year-old Phil Pleat, who was the oldest competitor in Monday's field of 312 players.

Pleat and his son James became the third father-son duo in history to compete in the United States Amateur Championship.

Unfortunately for the elder Pleat, a three-time New Hampshire state amateur champion who qualified for his first U.S. Amateur championship in 1990, he didn't fare well on Monday.

Pleat carded an 11-over-par 82, giving him little chance to make today's cut. If his son does make the cut, in all likelihood Pleat could remain active in the tournament as his son's caddie.

Pleat was runner-up in the 2011 USGA Senior Amateur in Richmond, Va., last year.

The U.S. Amateur Championship is being staged on two 18-hole courses.

James Pleat and McLaughlin each played on the CommonGround Golf Course on Monday, while Williamson, Barrett and Phil Pleat competed at the Cherry Hills Country Club. The golfers will switch courses when second round play resumes today.

The field of 312 golfers will be cut to the top 64 following today's stroke play round. The 64 golfers move on to single-elimination match play culminating in a 36-hole championship match.