may, 2018 05may(may 5)9:00 am06(may 6)5:00 pmPoison Spider Barrel Race Event DetailsMay 5-6, Poison Spider Barrel Race, Casper, WY Announcer Event Details May 5-6, Poison Spider Barrel Race, Casper, WY Announcer Time 5 (Saturday) 9:00 am - 6 (Sunday) 5:00 pm LocationCasper, WY CalendarGoogleCal