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How to Master Your Pacing at Desert Devil CrossFit

In the heat of a CrossFit WOD (Workout of the Day), the “go hard or go home” mentality is easy to adopt. But if you’ve ever “redlined” two minutes into a twenty-minute AMRAP, you know that maximum effort isn’t always the fastest way to the finish line.

To become a more efficient athlete, you need to master Rate of Perceived Exertion (RPE). Whether you are training at our box in Las Cruces, NM or competing on the big stage, RPE is the “internal speedometer” that ensures you’re hitting the right intensity every single time.

What Exactly is RPE?

The RPE scale is a subjective measure of how hard you feel your body is working during physical activity. While heart rate monitors and GPS watches are great tools, they can be skewed by heat, caffeine, or a poor night’s sleep. RPE, however, accounts for all these variables by asking one simple question: “On a scale of 1 to 10, how hard am I pushing right now?”


The Two Faces of RPE in CrossFit

In the context of a CrossFit program, we generally apply RPE in two ways: Cardiovascular Pacing and Weightlifting Intensity.

1. Cardiovascular Pacing: Avoiding the “Redline”

CrossFit is famous for its “metabolic conditioning” (MetCons). Understanding your RPE helps you avoid the dreaded redline—the point where your heart rate is so high that your technique falls apart and you’re forced to stop and stare at the barbell.

  • RPE 7–8 (The “Engine” Zone): This is where you spend most of your time. You are breathing heavily, but you can maintain a steady rhythm. Think of a 20-minute EMOM or a long chipper like “Murph.”
  • RPE 9–10 (The “Sprint” Zone): This is reserved for the final minute of a workout or short bursts like “Fran.” You are emptying the tank.

2. Weightlifting and “Reps in Reserve” (RIR)

When we hit the lifting portion of class, RPE helps you choose the right weight on the bar. If the coach says, “Find a heavy set of 5 at an RPE 8,” they want you to pick a weight where you feel like you could have done 2 more reps if you absolutely had to.

This is known as Reps in Reserve (RIR).

  • RPE 10: 0 Reps in Reserve (Absolute Max)
  • RPE 9: 1 Rep in Reserve
  • RPE 8: 2 Reps in Reserve
  • RPE 7.5: 2 possibly 3 Reps in Reserve
  • RPE 7: 3 Reps in Reserve
  • RPE 5 – 6: 4 to 6 more Reps in Reserve

Why RPE Matters for Your Progress

At Desert Devil CrossFit, we prioritize longevity. Chasing a “10 out of 10” effort every single day is a fast track to burnout or injury.

1. Auto-Regulation

Some days you feel like a superhero; other days, life gets in the way. RPE allows you to auto-regulate. If an Rx weight usually feels like a 7, but today it feels like a 9, RPE gives you the “permission” to scale back and stay safe while still getting a great workout.

2. Training the Correct Energy System

If a workout is designed to be a “sprint” but you go so heavy that you’re moving at a “grind” pace, you’ve missed the stimulus. By using the RPE scale, you can scale the movements to ensure you’re moving as fast as the workout intended.


The Desert Devil RPE Cheat Sheet

RPEEffortWhat it Feels Like
10Max EffortCannot go any further; no reps left in the tank.
9Very HardCan only speak one word; 1 rep left in the tank.
7-8Vigorous“Comfortably uncomfortable”; sustainable but tough.
5-6ModerateYou can talk in short sentences; great for skill work.
3-4LightActive recovery; easy rowing or jogging.

Conclusion: Listen to Your Body

Mastering RPE doesn’t happen overnight. It takes practice to know the difference between “this is hard” and “I’m at my limit.” Next time you walk into the box, ask yourself what the RPE goal is for the day.Ready to level up your training? Join us at Desert Devil CrossFit for a trial session and let our expert coaches help you find your perfect pace. Click here to sign up!