I was there on behalf of one of the papers local to home; trying to get in as a freelancer was getting me nowhere fast. Shame the bloke I was supposed to be photographing wasn't actually there.......
I simply emailed the Sports editors at several local papers asking if they'd like me to cover the event (we should have had a local guy driving) and one agreed; they got the pics for free and I got a media pass for the day. (The pass was for the specific event, specific venue and specific day; you'll have to be very lucky to swing a pass that gets you both circuits for the whole season.......)
Best advice, do your homework, find some specific local relevance to the papers you're contacting and try being cheeky. Likelihood is you'll get knocked back, but if you don't ask.......