Free MLB trade calculator and simulator. Drop in players from any team's roster, add cash, see every player's trade value and what the model says as if the deal happened today. Each piece is valued on its forward-looking expected production and the cost of acquiring it: a young cost-controlled star carries massive surplus, a veteran on a market-rate contract carries little. Toggle to raw WAR up top.
MODEL v1.2 Updated trade values. See what changed →Surplus = expected WAR over remaining team control × the FA market price of a win, minus the contract cost over those years. The $/WAR is tier-adjusted — empirically, FA signings price elite-tier talent at ~$11-13M/WAR and replacement-level vets at ~$5M, not a flat $8M. So Skenes' WAR is worth more per unit than a 1-WAR utility guy's. How the tiered $/WAR works ↗