Three deaf disc golfers will compete in the Professional Disc Golf Association World Championships that starts tomorrow in the Monterey Bay area of California. This includes Deaf Disc Golf Association president Nathan Boyes, Justin Ashton, who won the 11th Deaf Disc Golf Championships in Austin, Texas, and Todd Thompson, who took the 40-and-older title at the same tourney. This is believed to be the first time deaf competitors have taken part in the event that draws more than 400 players from around the world. Both New York's Rochester Institute of Technology and Washington, DC's Gallaudet University have disc golf courses on campus. Boyes has put together the video below to teach some sign language to use on the course.