Who was the man who won the Boston Marathon in the fastest time ever in all sports history?
The question as worded has a degree of ambiguity attached to it. The phrase: “ever in all sports history” implies something beyond the establishment of a Boston Marathon course record. If that is the true meaning of the question, the correct is Suh Yun-Bok, a South Korean marathoner who set the world record at Boston in 1947.