1. What is the Half Marathon Pace Predictor?

The Half Marathon Pace Predictor estimates your likely half marathon pace based on your current 10k running pace. This helps runners plan their training and race strategy.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• 10k Pace — Your current 10 kilometer pace in minutes per kilometer
• 1.1 — The conversion factor to estimate half marathon pace

Explanation: The formula accounts for the increased difficulty of maintaining the same pace over a longer distance (21.1 km vs 10 km).

3. Importance of Pace Prediction

Details: Accurate pace prediction helps runners avoid starting too fast and hitting "the wall," while also ensuring they don't run too conservatively.

4. Using the Calculator

Tips: Enter your current 10k pace in minutes per kilometer. Use a recent race time or time trial for most accurate results.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this prediction?
A: It provides a good estimate for most runners, but individual endurance capabilities may vary.

Q2: Should I use my training pace or race pace?
A: Use your best recent 10k race pace for most accurate prediction.

Q3: Does this account for hills or weather?
A: No, the prediction assumes similar course conditions to your 10k.

Q4: How should I adjust for beginner vs experienced runners?
A: Beginners may need to add 5-10% more time, while experienced runners might be closer to the prediction.

Q5: Can I use this for marathon pace prediction?
A: No, marathon pace requires a different conversion factor (typically 1.15-1.2 times half marathon pace).