You will be running at either your 10K run pace or your 5K pace, either of which will be tough to maintain at first. You'll have to guess at those paces, of course, and ease into your speed training gradually.
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You will be running at either your 10K run pace or your 5K pace, either of which will be tough to maintain at first. You'll have to guess at those paces, of course, and ease into your speed training gradually.