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Swim split calculator
Plan swim splits from a target finish time. Compare even, negative and custom pacing with segment times and cumulative race checkpoints.
Results
Enter your values or try the example.
How it works
Even pace allocates time by distance. The negative plan ramps from 3% slower to 3% faster, then normalizes to your goal. Custom weights scale a reference race you supply. These plans do not predict individual race performance. The final split includes any remaining distance.