Depends on what the question refers to:
The longest "running" event is the Marathon, but the longest event in terms of distance in the athletics is the Mens 50 kilometre walk (but you certainly aren't allowed to run in that).
Alternatively there are a whole series of events that have been included in every Olympics, therefore there is no single longest running event in terms of being at every Olympics.
10,000m or 10km walk, although you're not alllowed to run in that.
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.
What is the longest soul music event
The answer is running
Running is commonly refered to as "Track" in the Olympics.
It's the longest Someone
The longest running event in the Olympic Games in the marathon at a distance of 26 miles, 385 yards or 42.195 kilometers.
The longest runing sporting event in the USA is the Kentucky Derby
Not in the Olympics, but in some competitions you can skate as long as marathons! But in the Olympics, the longest distance is 3000m
Cycling road race at 100km.
There was only on running event played in the Ancient Olympics, the short sprint from one side of the stadium to the other.
The Kentucky Derby whose first running was in 1875.
99 meters since 100 meters is the longest
You must be at least 16 to compete in any event in the Olympics.
The mile run is not an Olympic event. The 1500 meter run is the event in the Olympics that is closest to the mile run.
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
That is the 10k Open Water event that debuted at the 2008 Games in Beijing. Lara Ilchenko of Russia won the gold medal in a time of 59 minutes, 27.7 seconds. Prior to the 2008 Olympics, the longest swimming event for women was the 800 meter freestyle.
Public decency, we can't have everything going everywhere while you're running. The Olympics is a respectable event.
5,000m (5k) and 10,000m. Once Haile Gebrselassie did 20,000m but that was a one off!