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American Low-Kick Rules

Full-contact with the leg kick added back in — the American scene’s answer after the above-the-waist rules were exposed internationally.

Origin

Adopted through the late 1980s and 1990s by American sanctioning bodies after international bouts made the weakness of above-the-waist-only rules obvious.

American low-kick rules are full-contact plus leg kicks, and that one addition changes almost everything about how a bout is fought. Once the lead leg is a target, a fighter can no longer stand square and hunt for head shots; stance, weight distribution and the ability to check become fundamental rather than optional.

What the code does not add is the knee or the clinch. Both remain illegal, which keeps the fight at punching and kicking range throughout and preserves the open, boxing-adjacent look of the American style. It sits, in effect, halfway between American full-contact and the Dutch code — leg kicks yes, knees no.

For American fighters this was the bridge ruleset. It let a generation trained in above-the-waist competition develop a leg-kick game without simultaneously having to learn clinch work, and it is still widely used in United States amateur and regional professional kickboxing.

Legal

  • Punches to the head and body
  • Kicks to the head, body and legs
  • Leg kicks to the outer and inner thigh

Illegal

  • Knees
  • Elbows
  • Clinching
  • Throws and takedowns
  • Kicks to the knee joint itself

What sets it apart

  • Leg kicks legal, knees still not — the halfway house between American and Dutch rules
  • No clinch phase, so the fight stays at open range
  • Widely used in United States amateur and regional professional bouts

Scoring

System
10-point must
Rounds
3 to 12
Round length
2 or 3 minutes
Extension rounds
None

Judging criteria

  1. 1Knockdowns
  2. 2Clean, effective striking including leg kicks
  3. 3Aggression and ring generalship