Four points for a win, two for a draw, one bonus point for four tries or more (BP1) and one bonus point for losing by seven or less (BP2).
If teams are level at any stage, tiebreakers are applied in the following order:
• Difference between points for and against
• Total number of points for
• Number of matches won
• Aggregate number of points scored in matches between tied teams
• Number of matches won excluding the first match, then the second and so on until the tie is settled
Fixtures and results
This section needs expansion with: Results Rd 1-11 (source top-league.jp). You can help by adding to it. (November 2013)
Microsoft Cup play-offs
The top eight teams in the league played off for the Microsoft Cup (2006) knock out tournament, which was won by Toshiba Brave Lupus.
Four promotion/relegation matches (Irekaesen) were played, with the winner of each qualifying for the 2006–07 Top League. The 9th, 10th, and 11th placed team from the Top League played against the 3rd, 2nd, and 1st placed teams, respectively, from Challenge 2. The 12th placed team from the Top League played against the 3rd placed team from Challenge 1.