From Barefoot to Elite Part III: Marathoners’ Secret Weapon

The hidden advantage powering marathon runners

Ever wonder how marathoners make running 26.2 miles look almost effortless? Sure, years of training, disciplined diets, and unmatched determination are essential. But there’s one secret tool elite runners rarely talk about: custom insoles.

Going the extra mile (literally).

When you’re pounding the pavement mile after mile, your feet bear incredible stress: up to 3-4 times your body weight with each stride. That’s the equivalent of repeatedly jumping from a height of three feet, thousands of times in a single run. Without proper support, injury is almost inevitable.

Elite marathon runners discovered decades ago that generic footwear just doesn’t cut it. Custom insoles are like the secret ingredient in a runner’s performance recipe, offering personalized arch support, precise cushioning, and superior shock absorption that regular shoes simply can't provide.

Insoles in action: From Boston to Berlin.

Talk to marathoners—from Boston finishers to Berlin qualifiers—and you’ll hear one common theme: foot support matters. Professional marathon runners frequently rely on personalized insoles to maximize performance, minimize fatigue, and crucially, reduce injury risk.

Whether you’re training for your first half-marathon or chasing a personal best at your next race, Groov's Everyday and Plush insoles offer a game-changing advantage, designed to help you run farther, faster, and injury-free.

Your race prep might include energy gels, pacing strategies, and playlists filled with power anthems—but don’t underestimate your feet’s role. With Groov’s custom insoles, every step counts.

See you at the finish line,

Anita

Resident Runner & Groover