The longest athletics race in the Olympics is the marathon race, over 26 miles.
But the longest of all is the mens cycling road race at 239km
The longest swimmign race for men is the 1500 metres and the longest for women is the 800m that is in the pool. The longest swimming race for men and for women is 10 kilometres in open water.
The MarathonThe longest running race is the marathon at 42.195KM (26miles 385yards)The longest foot race is the mens 50K walkThe longest race is the triathalon - 1500M swim + 40KM cycle + 10KM run
Cycling road race at 100km.
The longest race is the 50 Km walk. The longest running race is the Marathon.
The Coca-Cola 600 is currently the longest sanctioned Nascar race.
The longest race in the triple crown is the Belmont at a mile and a half.
The English Grand National, not a flat race but it's run in the flat season, making it the longest race in the flat race season.
The Great Serum Race
The Self-Transcendence 3100 mile race is the world's longest certified footrace.
Not in the Olympics, but in some competitions you can skate as long as marathons! But in the Olympics, the longest distance is 3000m
the maraphon race
the longest event in the olympics is the marathon
The longest swimming event for men in the Olympics is the 1500 meter freestyle and for women is the 800 meter freestyle.
The Self-Transcendence 3100 mile race is the world's longest certified footrace according to its organizers.
Pheidippides laid out 600 foot race course in the ancient Olympics.
Way too long!