There wouldn’t be any in your situation. Unless you hit a $10 15 team parlay - or something along those lines. If you just bet $10 on a straight bet… You’re good.
Well this isn't true. While most small gamblers do not report it, it technically is supposed to be self reported. The website won't report to the IRS unless you meet a certain threshold. So yes, you'll probably be good to get away with it, but you should know that isn't the law.