Arizona – AZ. Recreation Office. Pickleball. What the heck is Pickleball and why is it the fastest growing sport in America? Come find out on December 8th at our new Goodyear Pickleball Courts at the Goodyear Community Park. It is a free clinic. Instructors will all be rated 5.0 and led by Mark Clark , a 5.5 rated player and former National, Arizona State and Huntsman World Seniors Games Champion.