With Couture holding Toney in a head triangle, Toney tapped out at 3:19 of the first round.

Couture is now 19-10. This was Toney’s first MMA bout. He had began training for MMA nine months ago.

Couture, 47, is a former three-time UFC heavyweight champion and a two-time light heavyweight champion. Toney, 42, has held world championships in boxing at middleweight, super middleweight, cruiserweight and heavyweight.

His boxing record is 72-6-3.

Toney weighed 237 pounds while Couture weighed 220. This was the first time UFC held an event in Boston since the Massachusetts State Athletic Commission began sanctioning MMA at the beginning of this year.

Within the first 30 seconds of the bout, Couture brought Toney to the mat with a single-leg takedown. He never let Toney off the mat, landing punches to the head, then getting Toney into the head triangle, which he held until Toney signaled to the referee that he had enough.