Join Chesterfield-based Fleet Feet Sports and McBride and Son Homes, two of the sponsors for Relay and Run for 21, held annually to raise money for Down Syndrome Association of Greater St. Louis and Dads Appreciating Down Syndrome Community Outreach Fund. Routes consist of three loops, all within Clayton and University City areas. Contact 314.961.2504 or firstname.lastname@example.org. 7:30 a.m. RunFor21K.com
Have you always wanted to learn Hawaiian dance? Hula classes are available on Tuesday evenings and Sunday afternoons at The Connection at the Chesterfield Mall. Hula is a great low-impact exercise. First class is free. Drop-in classes are $20 each, or pick up a five- or 10-class pass for more savings. Facebook.com
These free sessions repeat weekly, ending May 7. Studies have shown after 50 hours of tai chi, there is a proven reduction in fall risk. These classes are led by certified Tai Chi for Arthritis & Fall Prevention instructors. To register for OASIS programs, call 314.862.4859, ext. 24, or visit OasisNet.org/STL.
Kids can test skills and advance to the sectional, team championship at a Cardinals' game and nationals at the 2018 MLB All-Star Week. Pitch Hit Run age groups: 7/8, 9/10, 11/12, 13/14; held on Field E1. Jr. Home Run Derby age groups: 12u (170-foot fence), 14u (200-foot fence); held on Field D. Metal spikes are not allowed. 9 a.m. M.MLB.com
The Saint Louis Crisis Nursery presents their premier fundraising event and gala! The Razzle Dazzle Ball is a glamorous evening of dinner, dancing, live and silent auctions, live music and specialty cocktails as more than 500 of St. Louis’ most distinguished citizens come together to support the Crisis Nursery’s mission of preventing child abuse and neglect. 6:30 p.m. CrisisNurseryKids.org
This is a massive hard-to-recycle collection event. For a list of items being collected, visit StLouisEarthDay.org. 10 a.m. to 2 p.m.
This program teaches drills and game scenarios in a noncompetitive environment. It requires parent participation. Repeats weekly, ending May 19. Each participant will receive and keep a participant manual to track progress, bat and ball set, glove, and Koosh balls. Resident: $60; nonresident: $75. Chesterfield.MO.US
This event with 100-plus vendors is an upscale, outdoor market featuring original art, antiques, clothing, jewelry, handmade treasures, home décor, outdoor furnishings, consumable yummies and seasonal plantings. The market is a three-day, rain or shine event. Admission for children under 12 is free. Cash and credit cards accepted at the gate. VintageMarketDays.com
Join in this community tradition to learn about sustainable products and services offered by local businesses/organizations, meet nonprofits, catch local musical acts and performance art, participate in educational activities, and diverse local cuisine. Free. 11 a.m. to 5 p.m. StLouisEarthDay.org
This concert will spotlight Dvorak's Symphony No. 6. This concert also will feature the winner of the group's annual Florence Frager Young Artists competition. Tickets are $18 each. St. Louis Civic Orchestra members are proud to be the resident orchestra of the city of Chesterfield. 3 p.m. STLCo.org
This free event for all ages will be held inside the Chesterfield Mall lower level, with informational exhibits, free tree and native pollinator giveaways, eco-friendly products and entertainment. It is organized by Chesterfield Citizens for the Environment Committee. The first Earth Day was observed in 1970. On April 22, 1990, 200-plus million people in 141 countries celebrated Earth Day. 10 a.m. to 3 p.m. Chesterfield.MO.US
The Chesterfield Family YMCA is hosting a Kids Night Out with a "Peter Pan” theme, featuring hot dogs, theater production of "Peter Pan," games in the gymnasium and "Peter Pan" hats to make. Fee is $20 per child and $15 per sibling. Y members pay $15 per child and $10 per sibling. Advance registration appreciated. Call 636.532.3100, ext. 261. GWRYMCA.org