Coordinates: 38°57′15.5″N 95°15′8.62″W / 38.954306°N 95.2523944°W / 38.954306; -95.2523944

Allen Fieldhouse (officially Phog Allen Fieldhouse), is an indoor arena located on the campus of the University of Kansas (KU) in the Kansas city of Lawrence. The arena is named in honor of Dr. Forrest C. "Phog" Allen, a former coach of the university's Kansas Jayhawks men's basketball team whose tenure lasted 39 years. The Allen Fieldhouse is one of College basketball's most historically significant and prestigious buildings, with 37 National Collegiate Athletic Association (NCAA) Tournament games having been hosted at the center. The actual playing surface has been named the James Naismith Court, in honor of basketball's inventor, who established Kansas' basketball program and served as the Jayhawks' first coach from 1898 to 1907.

Since the opening of Allen Fieldhouse in 1955, the Jayhawks have established a home record of 683-107 (.865), and since February 20, 1994, the Jayhawks have lost only 13 regular season games in the venue.^{[citation needed]}

Forrest Clare "Phog" Allen (November 18, 1885 – September 16, 1974) was an American basketball and baseball player, coach of American football, basketball, and baseball, college athletics administrator, and osteopathic physician. Known as the "Father of Basketball Coaching," he served as the head basketball coach at Baker University (1905–1908), the University of Kansas (1907–1909, 1919–1956), Haskell Institute—now Haskell Indian Nations University (1908–1909), and Warrensburg Teachers College—now the University of Central Missouri (1912–1919), compiling a career college basketball record of 746–264. In his 39 seasons at the helm of the Kansas Jayhawks men's basketball program, his teams won 24 conference championships and three national titles. The Helms Athletic Foundation retroactively recognized Allen's 1921–22 and 1922–23 Kansas teams as national champions. Allen's 1951–52 squad won the 1952 NCAA Tournament and his Jayhawks were runners-up in the NCAA Tournament in 1940 and 1953. His 590 wins are the most of any coach in the storied history of the Kansas basketball program.

Almario Vernard "Mario" Chalmers (born May 19, 1986) is an American professional basketball player for the Miami Heat of the NBA. He was selected 34th overall in the 2008 NBA Draft by the Minnesota Timberwolves. Chalmers played for the University of Kansas in college for three seasons, including the 2007–08 national championship team, hitting a dramatic three-pointer with 2.1 seconds left in regulation to send the game against the Memphis Tigers into overtime, with Kansas eventually winning the game.

In the 2006–2007 Big 12 Coaches Awards, Chalmers was named Co-Defensive Player of the Year with Marcus Dove of Oklahoma State. Chalmers was also voted on the All Big 12 Third Team, and the All Big 12 Defensive Team.

In the 2007–2008 season, Chalmers was named Big 12 All-Defensive First Team and All Big 12 Second Team. He was also named Most Outstanding Player of the 2008 NCAA Championship.

Chalmers attended Bartlett High School in Anchorage, Alaska. Chalmers was named 4A State Player of the Year three times in a row, joining Trajan Langdon as the only other player to do so. Chalmers also led his school to two state championships in 2002 and 2003, and a runner up finish in 2004.