Marcus O'Sullivan

Most Influential Person

Irish middle-distance runner

Why Is Marcus O'Sullivan Influential?

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According to Wikipedia, Marcus O'Sullivan 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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What Schools Are Affiliated With Marcus O'Sullivan?

Marcus O'Sullivan is affiliated with the following schools: