Get yourself a couple of clicker counters and hole one in each hand, then nominate a fighter to each hand and every time a legal scoring blow lands, click for the fighter that threw it.

This is amatuer boxing scoring, try it but only count punches that land on the legal scoring area and by the knuckle of the glove. Also, only score punches that are thrown with effort and not just arm punches like weak range finding jabs and youd be surprised at how low the landed punches are.