Jon Francis Koncak (born May 17, 1963) is a former American professional basketball player. A 7'0" center from Southern Methodist University, Koncak was selected with the fifth pick in the 1985 NBA Draft by the Atlanta Hawks. Koncak spent ten seasons with the Hawks (1985–1995), mainly in a reserve role, then concluded his career with the Orlando Magic. He retired in 1996 with career totals of 3,520 points and 3,856 rebounds.
|Born||May 17, 1963|
Cedar Rapids, Iowa
|Listed height||7 ft 0 in (2.13 m)|
|Listed weight||250 lb (113 kg)|
|High school||Center (Kansas City, Missouri)|
|NBA draft||1985 / Round: 1 / Pick: 5th overall|
|Selected by the Atlanta Hawks|
|Career highlights and awards|
|Career NBA statistics|
|Points||3,520 (4.5 ppg)|
|Rebounds||3,856 (4.9 rpg)|
|Stats at Basketball-Reference.com|
Though a reliable defender for much of his career, Koncak is perhaps best remembered for the six-year, US$ 13 million contract he received from the Hawks in 1989 – an unprecedented total for a reserve. Since he was a restricted free agent at the time, the Atlanta Hawks matched this offer from the Detroit Pistons. As a result, he earned the derisive nickname "Jon Contract". This event led NBA Hall of Fame center Shaquille O'Neal to choose a career in basketball over football due to the money he could make in basketball.
- Telander, Rick (November 6, 1989). "Millions from Heaven". Sports Illustrated. Retrieved 2016-09-04.
- Rosenberg, I. J. (April 18, 2015). "Ex-Hawk Koncak forever known as 'Jon Contract'". The Atlanta Journal-Constitution. Retrieved 2015-11-24.
- Gaines, Cork; Nov 24, 2015. "Shaq explains how the 'worst contract in sports history' convinced him to stop playing football in high school". Business Insider. Retrieved 2019-06-11.
- "SMU To Enshrine Jon Koncak's No. 53 Basketball Jersey On Feb. 23". SMU Mustangs. February 1, 2008. Retrieved 2015-11-24.