Train Hot, Race Cool

Easily track your thermal fitness with CORE’s new Heat Adaptation Score – now live in the CORE App.

Optimize Your Thermal Fitness

Under the right conditions and training, the human body has an amazing ability to adapt. Whether you are preparing for a hot race or just looking to push your performance threshold further, the new Heat Adaptation Score makes it easy to track your thermal fitness progress.

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How It Works

The Heat Adaptation Score uses an evidence-based formula, derived from extensive independent scientific research and refined in CORE's own research lab. On days with an adequate Heat Training Load, your Heat Adaptation Score will increase. The higher the load, the larger the heat adaptation benefits. Sequential days with no Heat Training Load will cause your score to decline. 

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Who's Using CORE

The new Heat Adaptation Score is being used by the top athletes, coaches, and sports scientists to prepare for the biggest races in the world.

Image of TOM EVANS

TOM EVANS

2023 Western States Endurance Run Winner

“I used CORE in the build up to the Western States 100 because heat training is essential for success in that race. CORE took the guessing out and I trained more specifically than ever, allowing me to improve my heat acclimation and also plan a specific cooling strategy. It was a game changer.”

Image of KRISTIAN BLUMMENFELT

KRISTIAN BLUMMENFELT

Olympic Gold Medalist and 2021 Ironman World Champion

In 2022, Kristian became Ironman World Champion at the first World Championship held at Saint George. He then became the first person to complete an Ironman-distance triathlon in under seven hours during the Pho3nix Sub-7 Sub-8 event at the Lausitzringrace track in Germany. He’s currently using CORE to prepare for the Paris Olympic Games.

Image of PRIMOŽ ROGLIČ

PRIMOŽ ROGLIČ

Cycling ITT Olympic Gold Medalist and team rider for BORA-hansgrohe

Image of REMCO EVENEPOEL

REMCO EVENEPOEL

World Champion Cyclist and team rider for Soudal-Quickstep