Rick Hoyt, who became a fixture in Boston while being pushed by his father, retires from the marathon.

If there has been one iconic image at the Boston Marathon over the years, it was Dick Hoyt pushing his son Rick in a wheelchair along the course route.

Rick Hoyt, a quadriplegic with cerebral palsy, is passionate about sports, and the father and son completed more than 1,000 races, including the Boston Marathon nearly every year from 1980 to 2014.

“When my dad and I are out there on a run, a special bond forms between us,” Rick Hoyt told The New York Times in 2009 with the help of a computer voice program.

After his father’s retirement from racing, Rick continued to compete by being pushed by others. Dick Hoyt died in March at 80.