Marcus O'Sullivan, Date of Birth, Place of Birth
TweetMarcus O'Sullivan
Irish middle-distance runner
Date of Birth: 
Place of Birth: Cork, Munster, Ireland
About Marcus O'Sullivan
- Marcus O'Sullivan (born 22 December 1961) is an Irish retired middle-distance runner.
- He competed for Ireland at four Summer Olympics.
- After Steve Scott and John Walker, he is the third all-time by total of sub-4 minute miles run over the course of his career, at 101.
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