Even pacing and negative splits are two practical ways to control effort and avoid early overpacing. Use the prediction as a pacing starting point, then adjust it for recent training, course profile, weather, and how similar the input race is to the target distance.
Even Pacing
Even pacing means running the same pace throughout the race or workout.
It is simple to plan and works well on flat courses with stable conditions.
Negative Splits
A negative split starts slightly controlled and finishes faster.
It can be helpful for runners who tend to start too hard or fade late.
Which Should You Choose?
Use even pacing as a baseline, then adjust for course profile, weather, and personal race habits.
For hilly routes, effort-based pacing may be better than forcing exact splits.
Method and Sources
How this page is checked
- Race prediction pages use a Riegel-style endurance model with exponent 1.06.
- Predictions work best when the input result is recent, measured, and similar enough to the target race distance.
- Heat, hills, altitude, fueling, pacing, injury, and training history can make the predicted time too aggressive or too conservative.
Sources
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