His career winding down to its final seconds, Floyd Mayweather Jr. took a victory lap around the ring, his fist raised in triumph.

After 19 years of perfection in the ring, he deserved one final bow.

Mayweather capped a remarkable career with a typical Mayweather fight Saturday night, using his defensive wizardry to frustrate Andre Berto on his way to a decision so lopsided one judge gave him every round.

The $32 million he earned was pocket change compared to what he got for Manny Pacquiao in his last fight. But the more important number was win No. 49 in the final fight of his unblemished career, tying the mark of the late heavyweight champion, Rocky Marciano.

You gotta know when to go. I’ve had a great career,” Mayweather said. “I’m leaving with all my faculties. I feel like I’m smart and sharp.”