Methodist College Belfast have won the most titles, with 36 (34 outright wins and 2 shared wins).
The points awarded to outright wins were increased from five to six in order to encourage results.
It would go on to two outright wins in the East African Rally.
If during the course of a season sides are tied on points in the league competition the side with the most outright wins is the winner.
The most successful club is Dungannon with 20 wins (19 outright wins and 1 shared win).
Things started well and even though being in a lower class he managed to battle for outright wins.
This was his most competitive season to date, with 2 outright wins and 7th place overall.
The Comets finished the 2005-06 season in fourth place with two outright wins.
However it was not to be, as the cars were poorly backed up and suffered from various incidents which cost them the chance of any outright wins.
He is known internationally for being the only horse to record two outright wins in the Breeders' Cup Turf.