When Did Two Platoon Football Start?

The first known use of the "two-platoon" system was by Michigan head coach Fritz Crisler in 1945 against an Army team under head coach "Colonel" Earl "Red" Blaik.

When did NFL players stop playing both ways?

The one-platoon system, also known as iron man football, was a system in American football where players played on both offense and defense. It was the result of rules that limited player substitutions, rules that are also standard procedure in many other sports, but were eliminated in the 1940s.

Who invented the platoon system?

Former Michigan and Princeton football coach Fritz Crisler developed the concept of training one unit of 11 players for defensive purposes and another unit to concentrate on offense between 1938 and 1947.

James H. Sterling

James H. Sterling

Environmental Science & Climate Journalist

James Sterling reports on renewable energy developments, climate policy, ecological conservation, and green tech innovations around the globe.