Dick Hoyt, who pushed his son while running marathons, passes away at age 80.

He finished more than a thousand road races alongside his wheelchair-bound son Rick. They gained the most notoriety by participating in the Boston Marathon.

Dick Hoyt passed away on Wednesday at his home in Holland, Massachusetts. He was well known for pushing his son Rick in a wheelchair at road races across the nation, particularly the Boston Marathon. He was 80.

The Boston Athletic Association, which oversees the Boston Marathon, announced his passing. Congestive heart failure was the cause, according to his son Russ.