Quakertown junior Jayson Rathjens isn't able to throw due to a recent finger injury, but it hasn't affected his hitting.

Rathjens had a three-run home run and four RBIs yesterday as the Suburban One League American/Continental beat South Jersey's Olympic/Colonial, 10-7, in the first game of the 24th annual Carpenter Cup baseball tournament at the University of Pennsylvania's Meiklejohn Stadium.

The SOL American/Continental will meet South Jersey's Tri-Cape in Thursday's 9 a.m. quarterfinal at Meiklejohn Stadium.

Rathjens was used as a designated hitter because his right index finger recently required 20 stitches.

"It doesn't hurt when I bat, but when I throw there is a lot of pain," he said. "It felt great to hit it because I was really nervous."

His three-run home run to right-center field was part of a six-run fifth inning.

The Olympic/Colonial, with five, has won the most Carpenter Cup titles but hasn't won an opening-round game since 2001. In the second inning the Olympic-Colonial was staked to a 3-0 lead on a three-run home run by Paulsboro junior rightfielder Casey Grimes.

Tri-Cape used an outstanding pitching performance to advance with yesterday's 3-2 win over Delaware North. Consisting of teams from the Tri-County and Cape-Atlantic League, Tri-Cape allowed just one hit and no runs after surrendering a two-run single in the first inning to Salesianum sophomore first baseman Greg Rostick.

Middle Township senior lefthander Scott DeCecco pitched two shutout innings. Hammonton junior Josh Carty added a shutout inning, and Cumberland junior righthander Andrew Owens pitched three scoreless frames before Holy Spirit junior righthander Tyler Petsch threw a scoreless ninth inning to earn the save.

In the third game, Jersey Shore, from Ocean and Monmouth Counties, contributed to the Public League's woes with a 15-0 victory. The game ended after seven innings due to lightning and rain.

Olympic/Colonial 030 000 013 - 7 9 5

SOL Amer./Cont. 010 061 11x - 10 11 3

WP: Keith Moyer. LP: Dom DePasquale. 2B: OC-Jim Yezzo, SOL-Todd Rubendall 2, Justin Davey, Tim Wessell. HR: OC-Casey Grimes; SOL-Jayson Rathjens.

Tri-Cape 000 201 000 - 3 3 0

Delaware North 200 000 000 - 2 4 0

WP: Josh Carty. LP: Chad Kuhl. 2B: T-Anthony Parker. HR-T-Juan Velazquez.

Public League 000 000 0 - 0 3 4

Jersey Shore 006 052 2 - 15 19 0

WP: Matt Marley. LP: Stephen Schall. 2B: P-Tim Freiling; J-Craig Sweeney, John Koslowski, Jake Beim. 3B: J-Chris Hueth, Brian Soloman, Vinny Zarrillo. HR: J-Todd Juliano.

Contact staff writer Marc Narducci at 856-779-3225 or mnarducci@phillynews.com.