| Period (year) of change in the regulations |
Type of change |
Effect of change |
Adaptation |
| 1884 |
The Red and White Tournament and its rules appear |
Emergence of the attack and defence rules |
Increased sporting character of the fight |
| 1887-1889 |
The locks of fingers, toes, wrists, knees and ankles are banned |
Elimination of the specific ju-jitsu techniques |
Increased safety and attractiveness of the fight |
| 1960-1970 |
Duration of the fight is limited to 20 minutes |
Increased dynamics of the fight |
The use of techniques based on high speed and strength |
| 1964 |
Introduction of 3 weight classes (68kg, 80kg, +80kg) and duration limited to 5 minutes |
Increased objectivity and rhythm of attack in the fight |
The use of increasingly spectacular techniques based on strength-speed |
| 1992 |
Introduction of 7 weight classes |
Increased objectivity and rhythm of attack in the fight |
The use of increasingly spectacular techniques based on strength-speed |
| 2003 |
Inclusion of a penalty for Kawazu Gake, creation of a Golden Score overtime, simplification to only two types of penalties (Shido, Hansoku) |
Increased dynamics and objectivity of the fight |
Elimination of the actions blocking the fight |
