Indy 500 Schedule for May 18, 2021: Practice Day 1 May 18, 2021 by Naptown Buzz Indy 500 schedule for practice on Tuesday, May 18, 2021. Plus a COVID-19 update on bronze badges, face mask requirements, and vaccination checks. Spread the love ADVERTISING NOTICE Some posts and pages on Naptown Buzz contain affiliate links for which we receive an affiliate commission. Additionally, you can support Naptown Buzz by making your everyday Amazon purchases through our Amazon link.