🏆 Age Grade Calculator
How your race time stacks up for your age
About this calculator
Age grading lets a 55-year-old compare performances fairly with a 25-year-old by expressing your time as a percentage of the age-adjusted world standard. Scores above 60 percent are respectable, above 80 percent is excellent, and anything over 90 percent is world class for your age. This calculator uses open-standard times with a simplified age factor.
Tip: Track your age grade over the years, not just your raw times. A stable age grade as you get older means you are actually getting relatively faster.