is this a correct sentence?
No, you might have to explain that again. You want to use "I would have made him lose the match" for a situation in which you didn't want to lose the match and you actually played. This is a totally different scenario. I'm not sure whether you're thinking about some of these questions you're asking.Would it be fine to use where we want to say that team lost match because of a player but the player's intention was not this, actualy he wanted his team to win.
Yes.Sorry, can we say "That player made the team lose the match" , but he didn't want then to lose, but because of his mistakes they lost match.