Why Your Double Unders Aren’t Improving!

Written by Fort 47 | Feb 5, 2026 5:10:52 PM

Why Your Double Unders Aren’t Improving (And the Exact Fix That Works)

Double unders are one of the most frustrating CrossFit skills.

You can be strong, fit, and capable of deadlifting a small car, but still trip over a skipping rope like a confused toddler.

If your double unders aren’t improving, it’s almost never because you “can’t do them.”

It’s because one key mechanic is wrong.

Quick Answer: Why Do People Struggle With Double Unders?

Most people struggle with double unders because they:

  • jump too high or too low inconsistently
  • spin from the shoulders instead of wrists
  • use the wrong rope length
  • have poor posture and piking
  • try to learn under fatigue too early

Step 1: Fix Your Rope Length

Rope length matters more than people think.

Correct rope length:

Stand on the rope with one foot.

The handles should reach roughly:
lower chest or armpit level

If the rope is too long, it drags and slows down.

If it’s too short, you whip your feet and trip constantly.

Step 2: Stop Jumping Like You’re Doing a Box Jump

Double unders require small, controlled jumps.

Your jump height should be roughly:

1–2 inches off the floor

Just enough for the rope to pass.

If you jump too high, you fatigue faster and lose rhythm.

Step 3: Spin With Your Wrists, Not Your Arms

Your arms should stay relaxed and close to your body.

If your shoulders are doing the spinning, you’ll burn out fast and your rope speed will be inconsistent.

Think:

  • elbows slightly back
  • hands slightly forward
  • wrists do the work

Step 4: Keep Your Body Tall

A huge mistake is piking forward.

If you bend at the hips, the rope catches your toes.

Stay upright, ribs down, neutral spine.

Step 5: Train Them Fresh

Double unders are a skill.

If you only practice them when you’re tired mid-WOD, your brain never learns proper timing.

Better approach:

Practice 3–5 minutes before class

Short sets, low frustration.

FAQs

How long does it take to learn double unders?

Most people can build consistent doubles in 4–8 weeks with focused practice.

What’s the best drill for double unders?

Single-single-double rhythm drills are the fastest method for most athletes.

Summary

Double unders improve when you fix rope length, wrist control, and posture. Train them fresh, keep jumps small, and build rhythm over time.

BLOG POST 4

Why You Keep Gassing Out in WODs (Even If You’re “Fit”)

One of the most common CrossFit frustrations is feeling like you gas out too early.

You might train regularly, be strong, and even run or cycle, but still hit a wall halfway through a workout.

That’s normal, but it’s also fixable.

Quick Answer: Why Do CrossFitters Gas Out So Fast?

CrossFitters gas out because they:

  • start too fast
  • don’t control breathing
  • fail to break sets early
  • lack aerobic base for repeated efforts
  • accumulate lactic acid quickly due to poor pacing

CrossFit workouts punish sprinting mistakes.

The Most Common Cause: Sprinting the First 2 Minutes

CrossFit is full of workouts that look short but punish you for being reckless.

The biggest pacing mistake is:

Treating the first round like it’s the last round

That’s why you feel like you’ve been hit by a truck by minute 4.

Fix 1: Use the “Nasal Breathing Test”

A simple pacing rule:

If you can’t breathe through your nose at all during the first minute, you’re going too fast.

You don’t need to nose-breathe the whole WOD, but if you lose control instantly, you’re sprinting.

Fix 2: Break Sets Before You Need To

This is the difference between experienced CrossFitters and people who die heroically in round 2.

Instead of:

  • 20 wall balls unbroken

Try:

  • 12–8 or 10–10

Short breaks keep heart rate controlled and performance consistent.

Fix 3: Stop Standing Still

Most people gas out because they stop moving completely.

Better approach:

Move slowly instead of stopping

Walk to the bar, shake arms, breathe, but keep moving.

Standing still is where workouts fall apart mentally.

Fix 4: Build an Aerobic Base (The Secret Weapon)

CrossFit rewards people with an engine.

The best way to improve your WOD stamina is:

  • Zone 2 cardio 1–2 times per week
  • longer metcons at controlled intensity
  • consistent weekly training volume

This is why some athletes look “calm” during workouts. They aren’t superhuman. They have a better aerobic base.

FAQs

Why do I feel dizzy after a WOD?

Usually due to poor breathing, dehydration, or lack of carbs before training.

How do I get better stamina for CrossFit?

Pace workouts properly, improve aerobic base, and train consistently.

Summary

If you keep gassing out in CrossFit, the cause is almost always pacing and breathing. Slow down early, break sets strategically, and build your aerobic base.