It is easier and tougher to make money shooting amateur sports in the modern day. I found that many many people are satisfied just seeing there picture and right clicking on it directly from YOUR website that you will need to have in order to sell the shot. If you already have the gear and you just want to have fun then go for it. You may even get lucky and break even. At the least you can use the images you took for a portfolio and use it as a stepping stone for your next job.