Please note: This is not official 5/3/1 advice and is not associated in any way with Jim Wendler. If you want official 5/3/1 advice, buy the book.
AMRAP stands for “as many reps as possible.” In 5/3/1 it’s the final set of your main lift each day, the one marked with a “+” (5+, 3+, or 1+). Because you’re chasing a new rep record at that weight, it’s also called the PR set, and it’s the engine that drives the whole program.
Table of Contents
What is the AMRAP / PR Set?
Every main lift in 5/3/1 ends with a “+” on the top set: week one is 5/5/5+, week two is 3/3/3+, and week three is 5/3/1+. The plus means you hit at least the prescribed reps, then keep going for as many quality reps as you can. Wendler calls these PR sets because the goal is to beat your previous best rep count at that load, cycle after cycle.
Leave one or two reps in the tank and stop the moment your form breaks down. The AMRAP set is hard, but it is not a grind to failure. A clean, fast rep set is the goal, not a maximal effort that wrecks your recovery.
AMRAP Example
Say you have a squat training max of 300 lb. Here are your top “+” sets across the three working weeks, taken off the standard 5/3/1 percentages:
- Week 1 (5s): 85% x 300 = 255 lb for 5+
- Week 2 (3s): 90% x 300 = 270 lb for 3+
- Week 3 (1s): 95% x 300 = 285 lb for 1+
Now say in week one you hit 255 lb for 8 reps instead of the required 5. That’s a rep PR. You can estimate your one-rep max from it with the Epley formula (weight x reps x 0.0333 + weight): 255 x 8 x 0.0333 + 255, or roughly 323 lb. Tracking that estimated max cycle to cycle is how 5/3/1 measures progress. You’re not just adding weight to the bar, you’re banking better rep sets at the same loads.
Why the PR Set Matters
The AMRAP set is also a built-in honesty check. A strong, snappy rep set says your training max is set correctly. A slow grind where you barely make the prescribed reps says the training max is too high and should come down. Push hard, track the number, and let your rep records, not your ego, decide when to add weight.
AMRAP Resources
Here are some helpful discussions of AMRAP and PR sets in 5/3/1:
- r/531Discussion (Reddit)
- Black Iron Beast 5/3/1 Calculator (shows the “+” set on every cycle)
- 5/3/1 for Beginners (The Fitness Wiki)
5/3/1 Glossary
Learn about other 5/3/1 terms in our 5/3/1 glossary.
5/3/1 Forever Book (Recommended Reading)
To best utilize the 5/3/1 training framework, the book is highly recommended. It’s a small investment for a lifetime of training knowledge.
The most up-to-date and complete collection of Jim Wendler's 5/3/1 programming framework. Contains dozens of templates to keep 5/3/1 fresh and adaptable.
