Traditional and sport
Kumite principle

Maai 間合い

Engagement distance

What it is

In plain words

The distance between two fighters, understood as a relationship rather than a measurement. The same gap is close for a tall fighter and long for a short one, and it changes the instant either moves. Controlling it is the largest single skill in free fighting, and the one that most reliably separates two people of otherwise equal technique.

6 points

How it is taught.

The trigger that starts it, the distance and timing it needs, the decision it represents, and what it costs when it is wrong.

Mechanics
Three ranges are worth naming: too far for either to reach without moving; the range where one step or slide reaches; and close range, where hands are already touching and elbows and knees are the weapons. The middle range is where almost all decisions are made.
Distance
The whole subject.
Timing
Distance and timing are the same problem seen from two angles. A technique thrown at the right moment from the wrong distance misses; one thrown from the right distance at the wrong moment is countered.
The decision
The fighter who decides the distance decides the fight. Everything else — feints, footwork, initiative — is a means to that end.
The risk
Closing distance is the moment of maximum vulnerability, for both fighters. That is why sen-no-sen exists.
Application
Every exchange, every entry, every retreat.
3 faults

Common errors, and how to fix them.

Fault
Standing at a distance the opponent has chosen.

Why it happens. Reacting rather than managing.

The fix. Move first, constantly and slightly, so the distance is always one you set.

Fault
Closing without a plan for what happens on arrival.

Why it happens. Treating the entry as the technique.

The fix. Drill entries that must finish with a specific technique.

Fault
Retreating in a straight line when the distance is broken.

Why it happens. The instinctive answer.

The fix. Angular movement. Straight back keeps you exactly where the opponent wants you, only further away.

Practice

Drills

  • Mirror drill: one partner moves freely, the other maintains an exact distance without instruction.
  • Tag: touch the partner’s shoulder without being touched. No techniques at all.
  • One partner may only advance, the other only retreat; then reverse.
Kumite ↔ kihon ↔ kata

What it connects to.

Techniques
3 terms

The Japanese, explained.

Maai 間合い
Engagement distance. The distance between two people, understood as a relationship rather than a measurement: the same gap is close for a tall fighter and long for a short one, and it changes the instant either moves. Controlling it is the largest single skill in free fighting.
Kamae 構え
Guard, posture of readiness. The position taken up facing an opponent — feet, hips, hands and eyes together. A good kamae threatens without committing, and gives away nothing about what is coming.
Ashi-sabaki 足捌き
Footwork. The management of the feet: sliding, stepping, switching and turning without losing balance, height or guard.