The Suicide Race is a horse race held every year, during the second week of August, in Omak, Washington. Over a span of four days and nights, riders repeatedly run their horses off Suicide Hill with a 120-foot galloping start. Horses blindly plunge more than 210 feet down a slope that event organizer's often boast as an "almost vertical... 62-degree angle." At breakneck speed, the horses then meet the Okanogan River. Entry into the river is narrow, causing bottlenecks and horrendous multiple-horse spills.
The horses have suffered heart attacks from over exertion, broken bones from shocking collisions and tumbles, and even horrifying death by drowning. Race has provoked serious concerns among animal welfare and animals rights groups.
In the previous 25 years at least 21 horses have died, including three in 2004 and one in 2012.
If you want to do something about it, start with the Washington State Legislature.