c. 265, § 9
Prize fighting; engaging
Official text prohibited actmental stateif conditionpenaltylegal term
Whoever, except as provided in sections thirty-two to fifty, inclusive, of chapter one hundred and forty-seven, by previous appointment or arrangement, engages in a fight with another person shall be punished by imprisonment in the state prison for not more than ten years or by a fine of not more than five thousand dollars.
Simplified explanation
Engaging in a prearranged fight with another person (outside licensed exceptions) is punishable by up to 10 years in state prison or a fine of up to $5,000.