For the fourth consecutive fight, WBO super featherweight champion Vasyl Lomachenko forced an opponent to quit on his stool. In this case, Guillermo Rigondeaux retired on his stool between rounds six and seven, claiming an injury to his left hand.
Lomachenko was more active (56.5 per round to 29.7) and slightly more accurate, though the numbers were low (16% for Loma, 8% for Rigo). Lomachenko's 16 total connects in round four tied Nonito Donaire's effort in round 10 for the most total punches ever landed by a Rigondeaux opponent.
Rigondeaux's power accuracy in his last six fights: 46.7%, tonight: 8%.
Lomachenko's power accuracy in his last nine fights: 46.4%, Tonight: 16%.
Rigondeaux never landed more than three punches in any round.
Lomachenko reached double-digit total connects in three of the six completed rounds.
Lomachenko averaged 68.3 punches per round in the final three rounds to Rigondeaux's 32.3 and out-landed him 34-8 overall, 20-4 jabs and 14-4 power in that span.
Vasyl 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.