Your Recent Race
Performance Analysis
VDOT Score
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Est. VO2max
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Current Pace
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Performance Level
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Age Grade
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Predicted Race Times
| Distance | Predicted Time | Pace |
|---|---|---|
| 5K | -- | -- |
| 10K | -- | -- |
| Half Marathon | -- | -- |
| Marathon | -- | -- |
Recommended Training Paces
| Zone | Pace | Purpose |
|---|---|---|
| Easy | -- | Recovery & base building |
| Marathon | -- | Marathon specific endurance |
| Threshold | -- | Lactate threshold improvement |
| Interval | -- | VO2max development |
| Repetition | -- | Speed & running economy |
How Race Prediction Works
Our race time predictor uses the Riegel formula (T₂ = T₁ × (D₂/D₁)^1.06), a widely-validated model that accounts for the non-linear relationship between race distance and performance.
The VDOT score is based on Jack Daniels' methodology, which combines your VO2max with running economy to give a single performance metric. This score determines your optimal training paces across all zones.
For best accuracy, use a recent race result (within the last 4-6 weeks) from a flat course where you gave maximum effort.