Introducing HYBRD: The Performance Hub for Modern Athletes

Breaking down the silos between your cardio, strength and wearable data to give you a complete view of your performance.

Graphic image of the HYBRD app
Boston, MA / May 14, 2025 / HYBRD

After six months of being in an invitation-only private beta, HYBRD has launched publicly on the iOS app store.

HYBRD is building the performance hub for modern athletes. They break down the silos between your cardio, strength, and wearable data to give you a complete view of your performance. The team is made up of ex-WHOOP, ex-US national rowing team, triathletes / ultramarathoners and are building the app that they wish existed for them.

The future is hybrid 

A new archetype of athlete is emerging: the hybrid athlete. Driven by the desire to progress both strength and cardio, they train to excel in both. Sports like rowing or rugby have always demanded this mix. But now, people are pursuing it as an end to itself. It’s a movement. As a result, interest in becoming a “hybrid athlete” is exploding. Search traffic for “hybrid athletics” has tripled in the last three years and grown 10x in the last decade.

The problem 

Every workout is a puzzle piece in a broader picture of performance. Yet, existing products are not designed to piece together a hybrid athlete’s unique training. An athlete might track their runs on a Garmin, bike rides on a Wahoo bike computer, strength training on Hevy, and their recovery on WHOOP.

It works if you’re just a runner or just a lifter. Hybrid athletes are not, so they’re left stitching together multiple data sources to see the full picture. Nothing existed to assemble the full picture, until now.

HYBRD’s approach 

HYBRD fixes this by providing the toolkit and central analysis hub for all your training data, no matter the exercise discipline. They integrate with all the tools you already use while incorporating AI to make logging everything else effortless. Then they layer in advanced sports science models to give you one thing no one else can: a complete, personalized picture of how all your training is having an impact.

Working with top coaches and sport scientists, they’ve built the only comprehensive approach to hybrid training. This opens the door for deeper analytics, social competition and training plan optimization.

Their earliest users have included Olympic medalists, professional athletes, national champions, Navy SEALs, Green Berets, Ironman Kona finishers, HYROX winners and more.

You can check out a demo video here.

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Who they are

The HYBRD team is made up of ex-WHOOP, ex-Amazon builders who have scaled fitness, wearables, and AI products before. They are hybrid athletes themselves building the tool they wish existed for their training. HYBRD is backed by Y Combinator.

  • Ben Katz, CEO – Led growth at WHOOP. VP & GM at Appex, running a portfolio of fitness apps. Former collegiate lacrosse player + ultramarathoner.
  • Caroline “Shoe” Shoemaker, COO – First analytics hire at WHOOP. VP & GM at Appex running a portfolio of productivity apps.
  • Mats Terwiesch, CPO – Former core PM at WHOOP. Led fitness product management at Appex. US national rowing team athlete + former Harvard AI/health researcher.
  • Matthew Ruiters, CTO – Former senior software engineer at Amazon AWS + Amazon “bar raiser”. Former USA rugby All American team athlete.
Press Contact
Ben Katz
ben@hybrd.app
HYBRD
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