It connects to the main arena by way of a removable wall. Prior to 2005, most home meets were held in the gymnastics center by reversing the direction of a section of baseline bleachers. The arena has been the site of conference and NCAA events as well. During the 1960s, the MAC Center, then known as Memorial Gym, hosted the NCAA Wrestling Team Championship on two occasions. The 1963 tournament, won by the Oklahoma Sooners, was held over three days with a total attendance of over 16,000. The championship returned to Kent in 1967 and drew over 26,000 fans over three days, and was won by the Michigan State Spartans. The building has been a host arena for games in two NCAA Division I Men's Basketball Tournaments. In the 1966 tournament, Memorial Gym was a host arena for two Mid-East regional quarterfinal games. The Dayton Flyers defeated the Miami Redskins 58–51 and the WKU Hilltoppers defeated the Loyola Ramblers 105–86. Two years later, Memorial Gym was again the site for two NCAA Mid-East regional quarterfinal games: the Marquette Golden Eagles narrowly beat the Bowling Green Falcons 72–71 and the East Tennessee State Buccaneers defeated the Florida State Seminoles 79–69 as part of the 1968 tournament. The MAC Center is also a regular site for Mid-American Conference events such as the women's gymnastics and men's wrestling championships. The inaugural Mid-American Conference Gymnastics Championships meet was held at the MAC Center in 1981 and the facility has hosted the meet five times through 2018. In 2008, the MAC Center was the site of both the wrestling and women's gymnastics championship meets. The MAC Wrestling Tournament returned to the MAC Center in 2014 while the MAC Gymnastics Championship was held at the arena in March 2015. The MAC Center houses administrative offices for the athletic department, coaches' offices for the various teams, the main ticket office, and hosts a variety of events including guest speakers, concerts, and graduations for both the university and local high schools. University commencement exercises are held three times a year in May, August, and December. Before the development of class registration by way of telephone and over the Internet, the MAC Center was the long-time site of class registration along with Wills Gymnasium. Concerts are held regularly in the arena and for many years, the MAC Center was a prominent concert venue for the region due to its relatively large indoor seating capacity. Until the Richfield Coliseum opened in 1974, the only arenas with larger seating capacities in the region were the 12,000-seat Cleveland Arena and 10,000-seat Public Auditorium, both in downtown Cleveland.