s1/e27 The Art & Science of Pacing with Chris McClung (@roguechris)

GPS Watches

GPS watches, while useful, have inherent limitations that can affect real-time pacing. Chris McClung emphasizes that these devices are not 100% accurate due to factors like satellite lag and environmental conditions, such as dense foliage or urban settings 1. He advises runners to use GPS watches as a tool rather than a crutch, suggesting that over-reliance can lead to ignoring internal cues of effort and pace 1. Elisabeth Scott adds that manual lapping on measured courses is more reliable than trusting the watch's auto lap feature 2.

When you become a slave to your watch, then you stop listening to how you feel.

--- Chris McClung

Understanding heart rate can also guide effort, but it requires personalized calibration to be effective 3.

   

Data Integration

Integrating data from running devices into training requires a balanced approach. Chris McClung suggests setting up watches to display useful metrics like lap distance and average pace, but warns against checking them too frequently during workouts 4. He recommends using data as a post-run analysis tool rather than a constant guide, allowing runners to focus on internal cues during the run 5. Elisabeth Scott highlights the importance of adjusting expectations based on conditions like heat and wind, which can affect perceived effort and pace 6.

Go back and look at the data afterwards, then reflect on how the actual information fits with how you are feeling.

--- Chris McClung

This approach helps runners maintain control and adapt to varying conditions while still benefiting from technological insights.