Even if some one has the information about fixed matches, who will spend the money ? why not anyone make money himself, rather than adding you as a partner unless you are willing to spend money.
The real question if someone has information about match fixing, why would they share it. Most fixings in televised games are not happening because a petty cash is involved, they need the people to believe that they are on the winning side. OP seems naïve because there is no one that is going to share does information and if they are sharing it, they are likely going to scam you.