The championship has been contested on an annual basis since 1914.

The championship was contested over six rounds at three events.

The championship was first awarded in 1991 and has been contested every season since then.

The championship has been contested four times since the inaugural 1999 tournament.

Coffee Kings played for the 38th championship contested by the league.

The championship was contested over a six race series.

The championship was contested over a six heat series with one race per heat.

The championship was contested over an eight round series.

The championship was contested over a three round series.

The first ever national championship is contested in Japan.