About Mark Sibley
Born 1950. Mark Sibley is an American basketball player.
Donald Mark Sibley (born ) is an American former basketball player. He was a 6'2" 175 lb guard and attended Northwestern University. He was selected in the fourth round of the 1973 NBA draft by the Chicago Bulls but was waived prior to the start of the 1973-74 season. He was the only rookie of 17 in Bulls camp to have graduated from college. He played one year for the Portland Trail Blazers, followed by one year of basketball for a team in Brugges, Belgium. He returned to Northwestern University to earn a Master of Arts in Teaching degree which led to a 33-year career of teaching English and coaching basketball and soccer at York High School in Elmhurst.
Career statistics
NBA Source
Regular season YearTeamGPMPGFG%FT%RPGAPGSPGBPGPPGPortland 28 4.4 .357 .857 .9 .5 .1 .0 1.6
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Important facts
People in Mark Sibley's life
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Contemporaries
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Frequently asked questions
Who is Mark Sibley?
American basketball player
When was Mark Sibley born?
Mark Sibley was born on 13 November 1950 in Rockford.
What is Mark Sibley's occupation?
Mark Sibley is a basketball player.
What nationality is Mark Sibley?
Mark Sibley is American.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). Mark Sibley. https://biography.guide/mark-sibley/
MLA: "Mark Sibley." Biography.guide, https://biography.guide/mark-sibley/.
Chicago: "Mark Sibley." Biography.guide. https://biography.guide/mark-sibley/.
Data last updated: 2026-09-20 · Spot an error? Report a correction.
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