After a relatively leisurely August, MotoGP has been revving at high-speed ever since and we're now on the brink of three back-to-back flyaway races in Japan, Malaysia and Australia before the season finale is upon us at Valencia in November. But when it comes to the championship, perhaps the most crucial month of all is the one just gone.

September saw the absence of Casey Stoner due to injury, which allowed the 2012 title fight to come down to a duel between Dani Pedrosa and Jorge Lorenzo. And when H?ctor Barber? took out Pedrosa during the controversial start of the San Marino MotoGP it looked like the championship battle had taken a decisive turn in Lorenzo's favour.

But that wasn't all that happened last month. There were new faces on the grid, difficult weather conditions at both Misano and Aragon, birthday celebrations for some and frustrating technical failures for others. There was even our first glimpse of the provisional 2013 season calendar. So how much of it all did you take on board?

Here's Crash.net's September quiz to refresh you about all that and entertain you at the same time. Just click here to take the quiz and once you're done let us know how you fared by clicking on the 'Post your comments' link below. Try and keep it fair by resisting the temptation to look up the answers in the likes of Google, Wikipedia or even in Crash.net's own news and results archives as you go - where's the fun in that, after all?