I’ve been meaning to respond to Robert’s comments from the other week about the age-graded results.
This is what he wrote …
I’m curious about your age graded results for other distances, and which of these looks to be your strongest. I am also curious about how the % rating for ultra’s looks to be far harder to obtain than short distances.
Even the marathon it’s pretty tough to get within 50% of the time of the world record, yet to get within 50% of the 100m record is something that many runners can achieve. Is it that a fast pace for endurance races is far harder to train for than face pace for sprints? Might genetics and upbringing have a big baring on this greater variation too?
This does make me wonder if anyone has mapped the times to percentage of the population that can achieve each time. This would might give you a better indication of runners achievements relative to the wider population rather than the best runners in history.
From my perspective I think the percentages up to marathon distance look about right. It is the ultra percentages when numbers go right down. I’ve just assumed that the charts aren’t really set up for off-road ultras and than all they are doing is comparing times for road ultras of whatever distance.
So for example when I put in 9hrs 44mins 10secs as a 49yr old running 53miles for the Highland Fling it comes up with 47.86% which is a lot lower than say my best half marathon percentage of 78.85% But I assume that the charts are looking at a 53mile road race which is very different.
I use the percentage charts in my ultras just to compare my ultras. So here is a list of my ultras in percentage order ….
Not surprisingly my best ultras percentage wise are the shorter ones and the worse are the longer ones. But what it does do if give me an idea of how I’ve done on one particular race.
So comparing my four Fling races we have …
So my 9.49.11 as a 50 year old was actually a better run than my 9.44.10 as a 49 year old by a massive 0.02% !! My West Highland Way times show …
So the good thing about the percentage charts for the ultras is being able to compare my performances year on year as I get older (and slower??). This means when I’m 73 running my 25th consequetive West Highland Way race in 24hrs 50mins 00secs it will give me a percentage of 43.03 which will be my percentage pb!!!
For my percentages I’ve used fetcheveryone.com There are lots of sites on the internet which give you your age-graded percentage and they all seem to be slightly different.
For example the other on the RunnersWorld site gives similar percentages for me up to marathon but quite different for my ultras.
For example my 19.51.59 gives me 42.42% on fetcheveryone but 58.12% on RunnersWorld. Maybe I start using the RunnerWorld one!
The key thing though is to use the same chart for all the runs so you can compare.
You might be able to tell that I had another day off today!
Too much time on my hands!! I did go out for an easy run mid morning. I made sure I ran it nice and steady, enjoying the sunshine.
One last thing … I see blogger has a new facility on the right hand column. If you want to register your email address they will send you an email each time I post!!! Sign up if you like that idea??!!
Tues 28th Mar Run Details
6.53miles in 50mins 37secs (7.46pace)