Here is a challenge match between a BJJ purple belt against a much larger boxer.

Challenge Match
SACHA MARTIN-LUTHER KING VS 248 lbs opponent.

BJJ purple belt Statistics:
Height: 5ft 7′ & Weight: 158 LBS

Opponent Statistics:
Age: 31
Height: 6ft 1′ & Weight: 248 LBS
Weight Advantage: + 90 LBS