The court found that Kyle Williams, 22, had been subject to double jeopardy because the facts used to convict him of criminal confinement were basically the same as those for one of the attacks, the Lafayette Journal & Courier reported.
Williams had been released from his athletic scholarship a few days before the attacks in November 2005 after suffering two concussions during the football season.
His lawyers also argued that the two attacks should be regarded as one course of conduct because they occurred on the same night. They said that the sentencing judge should not have imposed consecutive sentences.
But the appellate panel agreed with Superior Court Judge Thomas Busch that the assaults, which took place near a sorority house, were 90 minutes apart and Williams went home and changed in between.
In addition to the sentence for the assaults, Williams was sentenced to six years for stealing a computer from a dorm room and pawning it.