I had my players participating in tournaments: a race, a shooting contest, and a armed martial arts tournament.
The race was a standard race and the shooting contest was marksman ship competition.
I wanted to figure something different for the martial arts than just rolling against 2 purple so I decided to have it be a touch contest where the player rolled against the opponent's skill. They ranged from 1 purple to 3 reds and 2 purple. The players loved it and said that they really felt the tension!