1. What is Pace Fade?

Pace fade refers to the gradual slowing of running pace during a marathon, typically occurring in the later stages of the race due to fatigue. Calculating expected pace fade helps runners plan their race strategy more effectively.

2. How Does the Calculator Work?

The calculator uses the Pace Fade equation:

Where:

• \( initial\_pace \) — Your target pace at the start of the race (min/km)
• \( fade\_factor \) — Expected pace slowdown (min/km)

Explanation: The equation calculates your expected pace after accounting for typical fatigue-related slowdown during a marathon.

3. Importance of Pace Fade Calculation

Details: Understanding your likely pace fade helps in setting realistic goals, planning nutrition/hydration strategies, and avoiding hitting the wall.

4. Using the Calculator

Tips: Enter your target initial pace and expected fade factor based on your training and previous race experience.

5. Frequently Asked Questions (FAQ)

Q1: What's a typical fade factor for marathon runners?
A: Most amateur runners experience 0.15-0.30 min/km fade in the second half of the marathon.

Q2: How can I reduce my pace fade?
A: Proper training (especially long runs), pacing strategy, nutrition, and hydration can help minimize pace fade.

Q3: Should elite runners account for pace fade?
A: Elite runners typically have minimal fade (0-0.10 min/km) due to superior fitness and pacing discipline.

Q4: Does weather affect pace fade?
A: Yes, hot/humid conditions typically increase pace fade due to greater physiological stress.

Q5: How does course elevation affect fade?
A: Hilly courses may increase fade, especially if early hills are run too aggressively.