The most popular location for spectators is the par-3 16th hole, nicknamed "The Coliseum." One of the shortest holes on tour at , it is enclosed by a temporary 20,000-seat grandstand. The hole could be described as "one big party," with many students from the nearby Arizona State University in Tempe in attendance. Poor shots at the 16th hole receive boos, because the hole is very easy by the PGA's standards. Good shots, however, are cheered loudly. Famous moments include Tiger Woods' Saturday hole-in-one in 1997, which caused the gallery to erupt, throwing cups and other objects in celebration, and Justin Leonard giving the finger to the gallery after a poor shot. Jarrod Lyle aced the hole on Saturday in 2011, causing the stands to erupt in excitement. After 2013, the PGA Tour banned the practice of caddies racing the from the tee box to the green, citing injury concerns.