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Message: [QUOTE="zachvac, post: 1213786, member: 26306"] For single sessions that deal is extremely -ev for the staker. Most short-term deals are partial ie say you did a 2k buy-in, he gives you 1k then every dollar you bet 50c is yours 50c is his so say you finish with 10k you give him 5k and keep 5k 4k profit for each of you from the 8k (10k-2k) profit overall. Alternatively the 50-50 arrangements are usually more long-term deals where if you lose you're required to pay makeup when you make it back. I've heard of short-term deals where it's just 50-50 profits losses are on the staker but that's usually just when they're being nice and it's either a gift or an inconsequential amount of money to the staker because it is definitely -ev no matter who it is. There's just too much short-term variance and the fact that the backer eats all the negative variance but only gets half of the positive variance just makes it impossible to be +ev. [/QUOTE]