What is RIR (Reps in Reserve)?
The number of repetitions you could still perform before reaching failure.
The number of repetitions you could still perform before reaching failure.
RIR is inversely related to RPE. If you finish a set and feel you could have done exactly 2 more reps, you have 2 RIR. This perfectly correlates to an RPE 8 on the standard RPE scale.
Frequently Asked Questions
Frequently Asked Questions
The number of repetitions you could still perform before reaching failure.
Ready to run the numbers?
Get your result instantly — private, in your browser.