By CompuBox

WBO super featherweight world champion Vasyl Lomachenko, following his dominant performance over Guillermo Rigondeaux, (who landed just 8.4% of his total punches) takes over #1 spot as best defender (from Rigo). 

Rigodenaux didn't land more than 3 punches in any round and landed just 15 punches in six rounds (CompuBox avg.: 30.3%). 

Lomachenko also remains the CompuBox plus/minus leader,  but drops below magical +20 rating following his +7.9 performance vs. hard to hit Rigo Plus/minus determined by subtracting opponents connect percentage from listed fighter's connect percentage.

Lomachenko continued his meteoric rise up the boxing ladder, retaining his WBO junior lightweight title Saturday night after challenger Guillermo Rigondeaux quit on his stool after six rounds.

The 29-year-old Lomachenko was awarded the victory when Rigondeaux elected not to come out for the seventh round in the first world title professional showdown between two multiple Olympic gold medal winners.

The outclassed Rigondeaux becomes the fourth straight boxer to quit mid-fight against Ukrainian Lomachenko.

Lomachenko improved to 10-1 as he handed the Cuban defector the first loss of his career in front of a crowd of 5,100 at the Madison Square Garden Theater.

Lomachenko humiliated Rigondeaux, using his size and hand speed to dominate every round except the first.

He grew increasingly frustrated with Rigondeaux's tactics which included low blows and more clutching and grabbing than throwing punches. Lomachenko landed 55 punches overall while Rigondeaux landed just 15.

Rigondeaux, who was booed loudly after the fight, looked the much smaller of the two fighters as the 37-year-old moved up two weight classes to challenge for the title.

Rigondeaux (17-1) said after the fight that he hurt his hand in the second round and that was the reason he couldn't go on.

It marked the first time double Olympic gold medal winners battled for a world title as professionals.

Lomachenko, who won gold in the 2008 and 2012 Olympics, has rocketed to the top of his weight class since turning pro in 2013, winning nine world championship fights in his first 11 contests.