The five-day attendance of the tournament is usually around a half million, the best-attended event in golf. In 2016, it set a PGA Tour and Phoenix Open single-day attendance record with 201,003 fans on Saturday, February 6, and a tournament week attendance record of 618,365 fans. 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 straightforward by the PGA's standards. Good shots, however, are cheered loudly. Players who make
holes in one at the 16th will cause the gallery to erupt, leading to beverages and other objects being tossed in celebrations;
Tiger Woods (1997),
Jarrod Lyle (2011), and
Sam Ryder (2022) have each aced the hole on Saturday, creating raucous celebrations at the hole. The anger of a poor shot can lead to tempers flaring, as
Justin Leonard gave obscene gestures to the gallery after a poor shot one year. After 2013, the PGA Tour banned the practice of caddies racing the from the tee box to the green, citing injury concerns. Former
Arizona State players are very popular at the Phoenix Open, with many often wearing a
Pat Tillman jersey when entering the 16th-hole stadium.
Phil Mickelson and
Jon Rahm are popular there for that reason. In addition to golf, there is a concert/party held in the Scottsdale area called the Birds Nest, at which music artists like
Huey Lewis and the News play. The Thunderbirds are still highly active in organizing the tournament. The Thunderbirds use portions of the proceeds to fund
Special Olympics activities in Phoenix. ==Conflicts with the Super Bowl==