Green equaled the World indoor record in the 45-Yard
High Hurdles four times in 1935 and 1936 and
World indoor mark in the 60-Meter High Hurdles
in 1936. But even though he was
one of the premier American collegiate
track stars of the era, he nonetheless refused
to be considered for the 1936
Olympics in support of the U.S. movement
to boycott the Nazi Games.
Running for Harvard University,
Green first equaled the World indoor mark of
5.8 seconds in the 45-Yard High Hurdles
in a January 13, 1935, triangular
meet against Yale and Princeton. Two
weeks later, on January 27, in a Knights
of Columbus meet at the Boston Garden,
he matched the record twice in the
same event—first in a qualifying heat
and again en route to winning the race.
Thirteen months later, now Harvard
track and field team captain, Green
once again tied the World indoor 45-Yard High
Hurdle mark in a quadrangular meeting
against Yale, Dartmouth, and Cornell.
His world indoor record tying performance
(7.5 seconds) in the 60-Meter
High Hurdles came in a qualifying heat
at the 1936 Millrose Games in New
York’s Madison Square Garden.
Green was invited to the U.S. Olympic Team's final qualifying meet at Randall's Island, New York, in 1936 and was considered certain to make the team. Rabbi Levy, his rabbi at the Reform Temple in Boston, requested that Green and Harvard teammate Norman Cahners boycott the U.S. Olympic Trials, "to make a statement about participating in Berlin at the time the Nazi atrocities were coming to light." Both Harvard track stars decided to boycott the Olympics because they felt it was the right thing to do.
Green set many collegiate records
in the high and low hurdles and long
jump events and was elected to the
Harvard Athletic Hall of Fame in 1961.