There's a thousand different variables. But, like anything racing related, it costs everything you have and probably a bit more. That may be a bit harsh, but if you want to actually compete, there's no such thing as budget racing. You can show up with a stone stock ride, pay your entry fee, buy your gas and go for ~$100. And that might work for a race or two, but you're going to wear out/damage a tire or two or four. You're going to wear out a chain and sprockets, you're going to have to do maintenance on the engine, the suspension, the frame, the axle, the hubs, the steering, the everything.About how much does ATV racing cost?
I've seen people race everything from Blaster 200s to Banshees to the latest and greatest KTMs. Really all about personal preference. I would say whatever one you have in your garage is the right one to get started on (unless it's one of the Chinese built junkers, than it would just be an exercise in futility).What races can have a stock ATV in them?
What ATV would be a good platform?