The UPMC | YMCA Harrisburg Half Marathon course starts on City Island and runs along the scenic Riverfront Park in the downtown Harrisburg community. It’s an ideal course that’s friendly for runners of all abilities — beginners enjoy the lack of elevation while more experienced runners strive for personal bests. In 20 years of existence, the UPMC | YMCA Harrisburg Half has experienced tremendous growth and is quickly becoming one of the most loved running events in Central Pennsylvania.