Intermediate

Roll-Under Drill

Rolling under, or bob-and-weave, is how boxers duck beneath hooks and come up on the other side ready to counter. Each roll is a shallow squat combined with a side-to-side rotation, so the quads and glutes drive the dip while the obliques handle the turn. Done in rounds it is deceptively demanding leg and core conditioning on top of a vital defensive skill.

Equipment
Body Weight
Body part
Abs, Quads
Type
Cardio, Functional
Browse by movement
Rotation, Squat
Muscles worked
Target
Abdominal External Oblique, Vastus Lateralis
Secondary
Rectus Femoris, Gluteus Maximus
Tertiary
Erector Spinae, Gastrocnemius Lateral Head, Gastrocnemius Medial Head

How to do it

  1. 1

    Stand in your stance with hands high, feet a little wider than shoulder width.

  2. 2

    Bend the knees into a shallow squat to lower your head below hook height.

  3. 3

    Shift your weight and rotate as you travel under the imagined punch in a U-shaped path.

  4. 4

    Come up on the far side back into your stance with your guard still up.

  5. 5

    Roll back the other way to return, keeping the motion smooth and continuous.

  6. 6

    Work timed rounds, keeping the chest fairly upright as you dip.

Tips

  • Bend at the knees, not the waist, so you stay balanced and protect your low back.
  • Keep your eyes up and forward throughout the roll so you never lose sight of the target.
  • Come up with your hands high; the counter comes right out of the roll.

Variations

Common mistakes

  • The path flattens into a side-to-side shuffle with no dip in it, so a hook aimed at your head would still find it; the U has to have a bottom.
  • The roll goes so deep that you end up in a full squat, and a round of that cooks the legs long before the drill has taught you anything.
  • You come up on the same spot you left rather than on the far side, which is a bob rather than a weave and leaves you in front of the punch you just ducked.
  • Feet stay planted while the trunk swings, so the weight never actually transfers from one leg to the other and there is nothing to counter from.
  • Speed gets added before the shape is right, and once the round is fast the dip gets shallower every rep; slow rounds fix more here than fast ones.

Frequently asked

How many rounds of the roll-under drill should you do when you are new to the exercise?
Two or three rounds of two minutes at a steady rhythm, rather than for speed, fits well at the start of a boxing session. Expect the legs to be the limit, since each roll is a shallow squat and a two-minute round holds 60 to 80 of them. Build to three-minute rounds before you add rolls per minute. If your quads are burning by the first minute, you are dipping too deep rather than working too hard.
How do I make the roll-under drill easier or harder?
To make it easier, dip less and move slower, and carry your hands at chest height so the shoulders are not holding a full guard for the whole round. To make it harder, run a rope at shoulder height and roll under it so the depth stays honest, add a hook or a body shot on the way up, or fold rolls into a shadow boxing round so they arrive between combinations instead of on a metronome. A weight vest is not the answer; depth and rhythm are what should progress.
What is the roll-under drill good for, and when is it a poor choice?
It teaches you to get under hooks and come up in position to counter, and because each roll is a loaded squat with a turn, a round of it is genuine leg and trunk conditioning. Boxers need the skill, and fitness boxers get the leg work as a bonus. It is a poor choice with a knee that dislikes repeated bending under rotation, and a poor choice as your only defensive work, since rolling does nothing against a straight punch. Keep the dips shallow if your low back is sensitive.

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