The Tour du Mont Blanc covers more than 100 miles and passes through three countries: Switzerland, Italy, and France. (The circuit is also home to the ultra-marathon event, Ultra-Trail du Mont-Blanc. The winner usually finishes in about 20 hours.
June Kilian Jornet Smashes Speed Record on Denali. The Spanish runner and climber Kilian Jornet has shattered the roundtrip speed record on Alaska's Mount McKinley (Denali), climbing and descending North America's highest peak in 11 hours and 40 minutes.