"Having never run a marathon I cant be completely sure if I'm in good enough shape," he said. "I think I've put in the work that I can."
The 26-mile Boston Marathon is the world's oldest ongoing annual marathon. It's run on Patriot Day, a Massachusetts holiday. Clement is shooting to hit the qualifying time of 3 hours, 9:59.
"I'm proud to be running this race in memory of Tim. He was a good friend and I still miss him quite a bit," Clement said.
Timothy Moshier, a Bethlehem Central and West Point graduate, was killed in action April 1, 2006, while on combat patrol in Yusufiyah, Iraq, in his AH-64D attack helicopter.
Moshier's widow, Katie Moshier Suhr, said in a statement she's happy to see Clement making the run.
"We are truly honored that Matt is continuing the tradition of running in memory of Tim," she said. "It's been nearly four years since Tim was killed and the community's support has always been remarkable."
You can donate toward Clement's run by visiting www.firstgiving.com/mattclement. Donations may also be made directly to the foundation by mailing CPT Timothy J. Moshier Memorial Foundation, Inc., PO Box 111, Delmar 12054.