Middle-Distance

Tommaso Boffi

By Marc V.
Tommaso Boffi

"I've always struggled with heart rate control during races. It's easy to let anxiety and the excitement of the moment cause spikes that throw off my whole performance.

ENGO helped me find a sense of calm while running and keep my heart rate steady.

 Instead of checking my watch and stressing over high heart rate readings, I kept my eyes on the road, but the data was always right there when I needed it. No interruptions, no spikes—just consistent effort and an even pace. My heart rate stayed in the right zone the entire time, and it paid off big when I hit that final stretch.

As a biomedical engineer, I approach my triathlon training with scientific precision. Having achieved a 4:45 time in IRONMAN 70.3 Jesolo, a 34-minute 10k, and a 1:15 half marathon, I'm constantly seeking the optimal balance between data collection and maintaining flow state during sessions.

Heart rate control has always been my biggest challenge during races. The anxiety and excitement of competition frequently caused physiological spikes that would derail my carefully planned pacing strategy. ENGO has completely transformed this aspect of my performance by providing continuous heart rate feedback without requiring me to break form or focus.

During my half marathon PR attempt, I maintained unprecedented cardiovascular control throughout the race. Instead of the typical pattern of checking my watch, experiencing anxiety about elevated readings, and consequently pushing my heart rate even higher, I maintained visual focus on the road ahead while keeping my metrics in peripheral awareness. This created a calming effect that kept my heart rate consistently in the target zone—translating directly into more efficient energy utilization.

For cycling in the time trial position, ENGO has been equally transformative. Maintaining the optimal aerodynamic position while monitoring power output is essential, yet constantly looking down at a bike computer compromises both. Now I can hold perfect position while ensuring I stay at my target wattage, resulting in significantly improved efficiency.

The psychological benefit cannot be overstated. By eliminating the distraction of constantly checking metrics, I've experienced a profound improvement in my connection to pace and effort. This has created a positive feedback loop where perceived exertion and objective data align more naturally with each training session.

Initially, I worried about the additional weight of the glasses, but they're remarkably comfortable even during the most intense sessions. For triathletes serious about optimizing both their physical and mental approach to training and racing, ENGO represents a genuine breakthrough rather than just another gadget."

Everything runners ask, answered.

Will I even notice a difference?

The engo3 uses fixed tinted lenses (category 3), perfect for very sunny conditions. The engo3 Photochromic features photochromic lenses that automatically adapt to light levels (cat. 0 to 3), making it ideal for changing light conditions.

Read more articles

aginghealthmasters runningstrength training
Running After 60: What Golden-Age Runners Teach Us

Running After 60: What Golden-Age Runners Teach Us

Running isn't a young person's sport. Here is what happens to a runner's body with age, why staying active slows the decline, and how to keep running well after 60.

Marathon nutrition essentials

Marathon nutrition essentials

Preparing for a marathon also means planning your nutrition and hydration. Discover how to fuel your body, adapt your intake, and test your strategy during training so you can approach race day wit...

marathonrace planningracesWorld Marathon Majors
Not All Marathons Are Created Equal

Not All Marathons Are Created Equal

Every marathon is 26.2 miles, but elevation, weather, course shape and crowds make each one a completely different race. Here is how to compare them and choose your next one.