im hearings its this sunday , ive gone to 1 race day , and pretty sure i just rocked up also .... if you dont got a ma license or whatever you can get a day license and just make sure you got suitible gear and your bike isnt gonna cause danger to others (full working breaks , no sharp bits lol etc)
and i think it cost a fair bit for the day license , but i also heard they made it alot cheaper this year... give them a call they sort ya out..