GOODGUYS WIX FILTERS SPEEDWAY NATIONALS - 8 a.m. to 5 p.m. at Indianapolis Motor Speedway. Featuring more than 2,500 vintage cars and trucks (1972 and older) from 33 states and Canada. Also includes vendors, autocross performance course, model car show, Revell model make n' take sessions for children, swap meet, and live entertainment. Admission is $18 or $6 for children ages 7 to 12. Children ages 6 and younger are free. Spectator parking is free. Visit the website good-guys.com for more information.
AVON MASTERS HENDRICKS SWIM ALLIANCE - open swimming 8 to 9:30 a.m. at Clarks Creek Natatorium. Pre-payment is required. Passes are available at the Plainfield Recreation Center. Call 839-7665 for more information.
FONDO D'CONGO BICYCLE RIDE - starts 8 a.m. at Hummel Park in Plainfield. Includes several trails and rides up to 50 miles. Proceeds buy bicycles for Congolese. Visit the website fondodcongo.org for more information.
SCI HOPE RIDE - at Brownsburg West Middle School, 1555 S. Odell St. Registration 9 to 11 a.m. Ride starts 11:15 a.m. Bike show and awards ceremony follow. Also includes community festival with children's activities, raffle, and food. Minimum donation for motorcycle ride and/or festival is $10. Children younger than 16 are free with donating adult. Visit the website scihope.org for more information.
AUTISM GYMNASTICS CLASS - meets 9 a.m. at The Flip Zone, 880 Andico Road, Plainfield. Free and open to autistic children ages 3 to 12. Call 838-0667 or visit the website TheFlipZone.com for more information.
BOW WOW BASH - 10 a.m. to 3 p.m. at Williams Park, 940 S. Locust Lane, Brownsburg. Includes adoption groups, one-mile dog walk, contests, games, silent auction, vendors, food, and music. Admission is $5; dogs free. Proceeds support the Hendricks County Humane Society. Call 852-3893 or email firstname.lastname@example.org for more information.
CELEBRATING AVON DAY - 11 a.m. to 4 p.m. at the Avon-Washington Township Public Library. Includes local artisans, model trains, annual bucket truck candy drop, and Civil War re-enactors. Free disc golf tournament hosted by the Hendricks County Disc Golf Club is at Avon Town Hall Park. Registration starts 1 p.m. and tee-off is at 2 p.m. Adamson Karate hosts a free class from 4 to 5:30 p.m. there. Rock covers band Dude! performs a free concert starting at 6 p.m. That includes a free bounce house and concessions courtesy of City Barbeque and Sweet Treats. Visit the website AvonGov.org for more information.