This tool helps runners and endurance athletes project total finish times based on their target pace. Simply enter your average pace per kilometer or mile (e.g. 5:00), and the calculator will display a 50-distance breakdown for your current pace, as well as variations at -5 seconds and +5 seconds. It's a quick way to visualize how slight adjustments in pacing can impact long-distance events like 5Ks, marathons, or training blocks.
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