“World records are only borrowed” – Sebastian Coe
How do you define the perfect race ? Personal best ? Even pace ? High-placed finish ?
If, like me, you run races at different distances, then they can be hard to compare.
How can you measure your best ever marathon against your fastest 5 km ? They are such totally different challenges, with one run so much more slowly than the other.
Fortunately, there are rules and equations to tell you which of your races, run at any distance, represent your best performances. Here’s a calculator which works out just that.
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