Riverside Parks & Recreation Youth Basketball League Registration is available now! Available registration options include All Girls 1/2 grade and 3/4 grade as well as Co-ed 1/2 grade, 3/4 grade, 5/6 grade and 7/8 grade. Don't miss out on your chance to be a part of the Riverside Parks & Recreation's Youth Basketball League. Registration will be open until 11:59 PM on Thursday, December 1. Registration is available online and in our office, open M-F from 9:00 AM - 5:00 PM.