Heck, in Elma, where I lived for a decade, and my parents still dwell, slug races once defined the town's very existence. A forum user called Chronic Monkey writes,
Back in the day, my old stomping grounds of Elma, Washington, hosted the annual SLUG FESTIVAL! Yes, it was 3 days of fun and merriment dedicated to everyone's favorite gastropod, the noble slug, culminating in the ultimate event, the SLUG RACES! Imagine, if you will, 8 slugs barreling down the track at blistering speeds, competing against one another in a life and death struggle to win the title of the Fastest Slug in the State of Washington. Unfortunately, Elma's snootier town elders felt that a slug festival did not bestow grace and diginity upon our small community, and it was replaced with the mind-numbingly dull Blackberry Festival. That little celebration was thankfully put out of its misery after about the 5th year into it. I always dream of the day, though, that the Slug Festival returns to Elma for good!Amen, brother/sister. The last slug race was the day the music died.
Learn all you need to know about slugs here.