Jeff Browning is an American ultrarunner from Bend, Oregon. He was the 2005 and 2006 champion of the Big Horn 100 Mile Wild and Scenic Trail Runs in Wyoming's Big Horn Mountains. His 2006 performance was also a course record of 20 hours, 24 minutes. He has won other races including the Cascade Crest 100-Mile Endurance Run and the 2018 Hardrock 100. References American male ultramarathon runners Living people Year of birth missing (living people) 21st-century American people