Iowa volunteer assistant coach John Raffensperger died Monday at his home in Iowa City.

Raffensperger, known by many as “Raff,” is widely regarded to be one of the best high-school track and field coaches the state has ever seen.

At City High, Raffensperger was the head boys’ track and field coach for 34 years. Before he retired in 2004, the Little Hawks won 10 state titles. He was the first head coach to win 10 Iowa high-school state championships.

Raffensperger was inducted into the Iowa Track Coaches Hall of Fame in 1997, and City High has since renamed its track John Raffensperger Track.

After joining the Iowa staff in 2007, Raffensperger was reunited with his former prep standout Joey Woody, who serves as the director of track and field for the Hawkeyes.

Raffensperger is survived by his wife of more than 50 years, Sharon. They have two sons and three grandchildren.

A visitation is scheduled for April 28 at City High. Funeral services are April 29 at 11 a.m. at First Presbyterian Church in Iowa City.