Can I predict my improvement in half marathon times?
My PB was in Feb 06 at 1:47 but I have failed to achieve this since so was it
a fluke?
I've plotted an alternative trend based on more recent races and it predicts
rather depressingly that it will take me all year to achieve 1:47 again.
However I believe that I am at least capable of 1:40 provided that I train
consistently and lose weight
