Image: Grant Reynolds.

Phillip Island’s rounds three and four of the 2014 Australian Supercross Championship are due for revision following the release of an updated MotoGP World Championship calendar.

The Australian Motorcycle Grand Prix was initially pencilled in to be held a week later than in 2013 next year, however it will now maintain its 17-19 October date.

That date change on the MotoGP calendar will almost certainly see ASX moved back a week on the schedule to continue its alliance with the grand prix event.

Next year Phillip Island will be the lone double-header event on the ASX schedule, to be contested alongside the MotoGP series for the third consecutive season.

Click here to view the previously-announced provisional Australian Supercross calendar.

Series promoter International Entertainment Group is expected to release an updated 2014 ASX calendar in the coming weeks.