Skip to main content

Posts

Showing posts from May 10, 2026

Racing in the Heat: How to adjust as an endurance athlete

The temps are rising and endurance racing is heating up.  On tap this weekend, IM 70.3 Chatt and IM Jax - both expected to be very warm races!  Training and racing in the heat can feel incredibly frustrating, even for professional and experienced athletes.  A pace that feels comfortable on a cool day may suddenly feel exhausting when temperatures and humidity rise. Many athletes assume they are simply “having a bad race” when this happens, but the reality is that the body undergoes significant physiological stress when racing in hot environments. Heat changes how the cardiovascular system functions, how muscles produce energy, how efficiently the body cools itself, and how well fluids and fuel are absorbed during exercise. Understanding what happens inside the body during exercise in the heat can help you adjust expectations, make smarter pacing decisions, and ultimately perform better and safely.  One of the biggest mistakes athletes make in hot conditions is tryin...