The stade – a sprinting race. The athletes ran from one side of the stadium to the other.
The diaulos – a middle distance race. The athletes ran two lengths of the stadium.
The dolichos – an endurance race. The athletes ran approximately 20 lengths of the stadium
The diaulos looked like the easiest because I wouldn't have to sprint and lose my energy that fast but I would have had to run two lengths of the stadium rather then
1 side to the other.