Somehow, 10 years of doing parkruns has ticked over (July 2008). Lots of changes - from one in relatively easier reach, they're now into double figures.
There's also a lot of data.. I've done 90....
Did a bit of number crunching, really to understand what is the dominant factor in performance:
- Fitness/injury
- Age
- Weight
Weight wins it. I just disappointed that I have such a range of experimental data to go on here.
However, fitness and weight tend to correlate quite strongly.