"I'm a numbers guy—when I'm pushing 110-mile weeks and trying to stay on specific paces, data is everything. Before ENGO, even the small movement of lifting my wrist to check my watch would disrupt my rhythm and breathing pattern. It might seem minor, but at the elite level, those 4-5 seconds to regain your stride can make or break a workout.

At the Detroit Free Press Half Marathon, I used ENGO to negative split the race, qualifying me for my first elite professional race at Philadelphia. The real breakthrough came at the Houston Marathon, where I shaved a full 7 minutes off my PR, finishing in 2:28. Having my pace, heart rate, and elapsed time directly in my field of vision meant I could maintain perfect form while hitting every split precisely.

What's particularly valuable about the photochromatic ENGO 2 is how it adapts to changing light conditions. Marathon starts are often before sunrise, so having eyewear that transitions from clear to shades as daylight increases eliminates yet another variable to manage.

For master's runners pushing elite paces, every physiological advantage matters. When you're redlining near your threshold during a tempo run or trying to hit goal marathon pace during a 20-miler, ENGO becomes an extension of your body—creating a seamless connection between your mind's intent and your body's execution. This isn't just about convenience; it's about optimizing every aspect of performance when the margins for improvement get increasingly smaller."