Resting heart rate (RHR)
Resting heart rate (RHR) is the number of times your heart beats per minute when you are completely at rest, best measured just after waking. As aerobic fitness improves, the heart pumps more blood per beat and resting heart rate tends to fall.
What's a normal resting heart rate
For adults, 60–100 beats per minute is the usual clinical range, and endurance athletes often sit in the 40s or 50s. Genetics play a big part, so a low number on its own isn't a measure of fitness — your own trend is what counts.
What a rise means
A resting heart rate several beats above your normal for more than a day or two can be an early sign of accumulated fatigue, illness, dehydration, poor sleep or stress. Paired with a falling HRV, it's a good reason to swap a hard session for an easy one.
In The Next Race
The Next Race tracks your resting heart rate from your watch or ring and flags drift above your baseline as part of your daily recovery.