I've been chatting with a few people and they confirmed to me that outperform football market long-term (by statistical model or any other way) is indeed very d

I've been chatting with a few people and they confirmed to me that outperform football market long-term (by statistical model or any other way) is indeed very difficult, and most professionals currently do tennis and horses. The reason is that predict a goal in football is difficult, while the tennis match can be partially predicted by watching the game.