A native of
Lowell, Massachusetts, Green was a standout in track at
Brookline High School. On October 5, 1934, he won the 100-meter dash and 110-meter high hurdle, and broad jump events at a meet pitting American and Italian athletes at
Harvard Stadium. At the 1935
William C. Prout Memorial Games, Green tied a world record by finishing the 45-yard high hurdles in 5.8 seconds. At the 1935 triangular track games between Harvard, Cornell, and
Dartmouth College at the
Boston Garden, he broke the meet record in the 45-Yard High Hurdles. Green was named captain of the Harvard track team for the 1935–36 season. He represented the school at the Harvard–
Yale–
Oxford–
Cambridge meet at
London's
White City Stadium and won the broad jump and 220-yard low hurdles. In 1936, the annual triangular track meet at Boston Garden was expanded to include Yale. Green won three events (50-yard dash, running broad jump, and 45-yard high hurdles) at the inaugural quadrangular meet. He won the 50-meter hurdles at the 1936
IC4A indoor championship at Madison Square Garden, but Harvard finished the standings behind
Manhattan College and Yale. That same month, he competed in the annual track meet at the
Maple Leaf Gardens, but lost in the broad jump to Canadian
Sam Richardson. At the 1936 Heptagonal Games, Green won three events, the 110-meter high hurdles, 200-meter low hurdles, and the broad jump, and set the meet record in the later two. At that year's Harvard-Yale meet, he won the 100-meter high hurdles, 200-meter low hurdles, and broad jump. He suffered a leg injury prior to the 1936 IC4A outdoor championships at
Franklin Field and finished second behind John Donovan (son of
Patsy Donovan) in the high hurdles. His injury forced him to withdraw from a meet at
Princeton University the following month. At the
1936 USA Outdoor Track and Field Championships, he finished third in the long jump behind
Jesse Owens and Kermit King. Green was considered a leading contender to make the Olympic team in 1936. He and his Harvard teammate
Norman Cahners chose to protest the event being held in
Nazi Germany on the advice of Rabbi Harry Levy of
Temple Israel in
Boston. Green was inducted into the Harvard Athletic Hall of Fame in 1970 and the
International Jewish Sports Hall of Fame in 1997. ==Personal life==