In this new mini-series, our friend Shelby Farrell from goodr sits down with a variety of ultrarunners to get advice about training and preparing for Aravaipa Running's inaugural Cocodona 250. Today, Shelby talks with Tucson local and Aravaipa Racing Team member, Dr. Brianna Grigsby. UPDATE: Since this interview was recorded, Brianna has had to pull out of the race due to a foot injury.

Learn more about Cocodona 250: https://cocodona.com

Follow Shelby's journey: https://www.instagram.com/shelbzzf