CRANSTON, R.I. (WPRI) — The 129th Boston Marathon is three weeks away. Every year, tens of thousands of athletes make the 26.2 mile journey from Hopkinton to Copley Square. This year, Cranston native Keegan Reilly will be among them. Reilly told 12 News that, while he's never run in a ma rathon before, he's excited to be doing so for the Dana Farber Cancer Institute — a cause that's become close to his heart. The 23-year-old is specifically raising money for "Team Christine" — a Dedham-based nonprofit honoring his boss' late wife who died from pancreatic cancer. Reilly is running not only in memory of his boss' wife, but also for his grandmother, who is currently batting the disease. "It feels great to be a part of something," he said. Reilly said he's been training for months. "Until I started training, the most I ever ran was six miles," he said. "So far, the longest run I've completed was 21 miles with a friend of mine." Despite the challenges he's faced, Reilly said he's inspired by those he's supporting. "The battle the people who are diagnosed with these diseases fight everyday is insurmountable, and they seem to do it," Reilly said. "My own grandma has such a can-do attitude and has never complained once, so when you're running up a hill and it gets hard, it's easier to push through." Reilly said he and his fellow runners set a goal to raise $10,000 each, and he believes they'll surpass that. Download the WPRI 12 and Pinpoint Weather 12 apps to get breaking news and weather alerts. Watch 12 News Now on WPRI.com or with the new 12+ smart TV app. Follow us on social media:                     Close Thanks for signing up! Watch for us in your inbox. Subscribe Now Daily Roundup SIGN UP NOW ...read more read less