Ann Trason is an American ultramarathon runner from Auburn, California. She set 20 world records during her career. Her world record of 5:40:18 at the 50 mile distance, set in 1991, was unbeaten until 2015. From Wikipedia
Her 17:58:19 finish on the oxygen-thin out-and-back course cut more than eight minutes off Ann Trason’s longstanding mark
