Without wishing to be a downer, my best 5k form was 19.22, but I wouldn't have got close to sub 1.30 in a half marathon at the time because I didn't have the endurance. If you aren't worried about flaming out, go for it though.
Without wishing to be a downer
Ah but have you factored in the outfit and playlist??
Ha!
@hats started
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Without wishing to be a downer, my best 5k form was 19.22, but I wouldn't have got close to sub 1.30 in a half marathon at the time because I didn't have the endurance. If you aren't worried about flaming out, go for it though.