https://tristateautoracingnews.com/2026/05/04/michaels-mercer-raceway-celebrate-75th-anniversary-season-opener-featuring-regular-three-divisions-5-butler-county-night-and-bike-races-saturday-may-9th/ 2026-05-05T01:13:39Z Tri-State Auto Racing News en Michaels Mercer raceway celebrate 75th anniversary season opener featuring regular three divisions, $5 Butler county night and bike races Saturday, May 9th 2026-05-05T01:13:39Z Blog