Brian Chontosh

Retired USMC Major and Ultramarathon Runner

Brian Chontosh, also known as 'Tosh', is a retired United States Marine Corps major and ultramarathon runner. He has completed several notable endurance feats, including rowing across the Atlantic Ocean, mountain biking for 24 hours, and completing ultramarathons up to 238 miles in distance. Tosh has also completed nine expedition adventure races and has served in several combat deployments. He was awarded the Navy C...