ultramarathon

(redirected from Double-marathon)
Also found in: Dictionary.
Any foot race that is longer than a marathon—which is 26.2 miles/42 km—usually either a timed event that cover a specified distances—50 or 100 km or miles—or an event measuring distance covered during a specified time
Injuries Electrolyte imbalances, water intoxication, cerebral hyponatremia, hyponatremic encephalopathy

ultramarathon

Sports medicine A footrace that is longer–eg, > 50 miles/80 km–than a marathon–26.2 miles/42 km. See Marathon.
Mentioned in ?
References in periodicals archive ?
Unless you've climbed Everest or ran that double-marathon through the desert, you will never subject your body to such intense activity over such a long period of time.
Stage 1 is a 6.2 mile point to point swim followed by a 90 mile bike ride, Stage 2 is a 170 mile bike ride and Stage 3 a 52.4 mile double-marathon run.