IESA Track Field Qualifying Standards
From 1932 to 1984 there were two classes of boys' track, Class A (Heavyweights) and Class B (Lightweights). Class B was based on age, weight, and height from 1932 to 1968. In 1969, the weight factor was dropped and competition was based on age and height factors. Class B was discontinued in 1985, changed to grade level play (7 and 8) and school ...