This year is the 3rd Annual Ching Farm Rescue and Sanctuary 5K/10K Run/Walk/Sleep-in for the Animals! I know what you are thinking, "that is great but you are the only crazy person who lives in Utah". Well, if you'd still like to support a farm animal sanctuary that advocates a vegan lifestyle, then you can sign up to sleep-in for the animal! When you do this, you still get a race shirt and all proceeds from the event go directly to pay for food and veterinary care for the animals at Ching Sanctuary.
There is a brief description here and you can sign-up at Active.com.