So I'm female, age 22 and about to run a half marathon on sunday. My first half marathon! I just want to make it through with a reasonable time but I'm not even sure what to consider "reasonable". Does anyone know the average time it takes a female about my age to run a half marathon? I ran 12.4 miles on fairly flat land in exactly 2 hours and I'm under the impression that this is fairly slow? Commentary? Is there some sort of table out there that has the average times per age group or something?
There is something called Age Grading that can establish relative levels of performance. You can make calculations here:
Plugging in your age and gender and using an age grade of 50% for "average", the result for a half marathon would be 2:11:40.