By advancing to the quarterfinals, Matthews automatically qualified for the 2014 U.S. Amateur.
Coming into the tournament, Matthews won the 111th Patterson Cup on Aug. 9, and, a week before that, placed second at the Pennsylvania Amateur Championship.
Earlier in the summer, he posted wins at the U.S. Amateur Qualifier and the Philadelphia Golf Association Open Championship, where he captured the 36-hole event in a four-hole playoff. Matthews also was an alternate for the U.S. Open Championship at Merion after shooting a 4-under-par 67 in the final round of a sectional qualifier.
In other tournaments
* At Greensboro, N.C., PGA Tour rookie Patrick Reed shot a 6-under 64 to take a one-stroke lead in the Wyndham Championship. He had an 11-under 129 total.
John Huh had the best round of the day - a 62 - to move to 10-under. John Deere winner Jordan Spieth was 9-under after a 66. Spieth is a PGA Tour rookie, and Huh is in his second year.
Charlie Wi, Bob Estes, Rory Sabbatini, Brian Harman, Jim Herman and first-round co-leader Ross Fisher were 7-under.
Wi had a 65, Estes, Harman, Herman and Sabbatini shot 66, and Fisher had a 69.
Organizers moved up the third-round tee times today to try to dodge a threat of rain, with players going off in threesomes at the first and 10th tees.
* At Endicott, N.Y., Kenny Perry shot a 7-under 65 to take a one-shot lead after the first round of the Dick's Sporting Goods Open.
Perry sank a birdie putt at No. 18 to move ahead of brothers Brad and Bart Bryant and Joel Edwards.
Esteban Toledo, Jeff Freeman, Rick Fehr, and Russ Cochran were tied at 67 as just over half the field broke par under ideal scoring conditions at En-Joie Golf Club.
* At Parker, Colo., Azahara Munoz and Karine Icher knocked off Cristie Kerr and Paula Creamer to help Europe take a 3-1 lead after the opening session at the Solheim Cup.
America's point in the early session came from Morgan Pressel and Jessica Korda, who beat Catriona Matthew and Jodi Ewart-Shadoff, 3 and 2.
Trying to recapture the cup after losing in 2011, the United States has never lost the Solheim Cup on home turf.