Dar's natural athletic abilities and his accomplished ease on the trampoline would quickly render him the ranking of 3rd place for his division.

One of Robinson's first major stunts was a 100-foot jump from a cliff into a river for actor Steve McQueen in the 1973 film Papillon.

[5][6] In a highly publicized 1979 feat, as the stunt double for actor Christopher Plummer in the 1982 film Highpoint, Robinson made a 700-foot free-fall from a deck on the CN Tower, then the world's tallest free-standing structure, in Toronto, Ontario, Canada.

The first test of the cable using a bag of water equal to Robinson's weight smashed into the ground when the braking mechanism failed.

Although visibly nervous, he leapt from the tower's edge, plummeting more than 1,200 feet (366 m) tied to only a 1/8" (3 mm) steel cable, stopping only a short distance above the ground.

While filming a routine high speed run by the camera with a fellow stuntman, Robinson rode his stunt motorcycle past the braking point of a turn and straight off a cliff, to his death.