USA Track & Field - Southern California Association - Road Running Grand Prix RulesAGE-GRADED CALCULATOR:
Age grading is a way of putting all race participants on a level
playing field, regardless of age or gender. Age-graded scores let you
compare your race times to those of different runners, as well as to the
standard for your age and gender. This is an adapted version of the
popular Age-Graded calculator created by Howard Grubb. An expanded version of this calculator is also available online. You can also find this same calculator at Runners World Magazine.