The contests aren't unusual: Taking place during time outs or halftime of basketball games, someone gets a chance for a big payday by doing something improbable.
It happened last week at the University of Northern Iowa when Dalton Hinsch, a sophomore who graduated from Mankato West, won a $10,000 prize for hitting a series of shots that culminated with him swishing a half-court heave.
It wasn't that easy.
During a time out, Hinsch made a lay-up, a free throw and a three-pointer before hitting the half-court shot.
But the cheers turned into boos when contest officials announced that Hinsch didn't make all of the shots within the required 24 seconds. A video showed that it took him closer to 27, but there wasn't a clock running anywhere in the arena for fans to watch the countdown for themselves.
Hinsch took to Twitter to let his situation be known.
As a compromise, the school and the contest sponsor first decided to award him $2,000 and tickets to the Missouri Valley Conference postseason tournament in St. Louis.
That satisfied some people, but not others.