Second and third-round NCAA Tournament games held in Raleigh’s PNC Arena helped generate more than $4 million, according to the Greater Raleigh Sports Alliance. About 17,000 people visited the Triangle during the first full weekend of the NCAA Tournament. Total attendance for the three sessions at PNC Arena was 53,172. A ZIP code study showed that 71 percent of ticket-buyers were from outside of the Triangle; 59 percent of ticket-buyers were from out of state. Visiting fans accounted for more than 10,000 hotel room nights during the weekend.