1. What is the Running Calculator Predictor?

The Running Calculator Predictor estimates your potential race time for a new distance based on your current performance at a different distance. It uses a well-established formula that accounts for the non-linear relationship between distance and running time.

2. How Does the Calculator Work?

The calculator uses the running prediction formula:

Where:

• \( current\_time \) — Your recent race time (minutes)
• \( current\_dist \) — Distance of your recent race (km)
• \( new\_dist \) — Distance you want to predict time for (km)
• 1.06 — Exponent accounting for fatigue over longer distances

Explanation: The formula accounts for the fact that running speed decreases non-linearly as distance increases.

3. Importance of Running Predictions

Details: Accurate race predictions help runners set realistic goals, plan training paces, and develop race strategies for new distances.

4. Using the Calculator

Tips: Enter your most recent race time and distance, then the new distance you want to predict. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this prediction?
A: It's reasonably accurate for most runners when predicting between similar distances (e.g., 5k to 10k). Accuracy decreases for very different distances.

Q2: Why the 1.06 exponent?
A: Research shows this exponent best accounts for the non-linear fatigue accumulation as distance increases.

Q3: Does this work for ultra distances?
A: The formula works best for standard race distances (5k to marathon). For ultras, other factors like terrain become more significant.

Q4: Should I use race times or training times?
A: Always use race times for most accurate predictions, as they reflect your true maximal performance.

Q5: How does fitness level affect predictions?
A: Well-trained runners typically see more linear improvements across distances than beginners.