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Murray Halberg of New Zealand (right) leads Mohammed Gammoudi of Tunisia and the rest of the pack during heat 3 of the men's 5000 metres event during the Summer Olympic Games in Tokyo, circa October 1964. (Photo by Ed Lacey/Popperfoto via Getty Images/Getty Images)

Murray Halberg of New Zealand (right) leads Mohammed Gammoudi of Tunisia and the rest of the pack during heat 3 of the men's 5000 metres event during the Summer Olympic Games in Tokyo, circa October 1964. (Photo by Ed Lacey/Popperfoto via Getty Images/Getty Images)