TD Cost is the implied cost of a touchdown based on the player’s salary and the player’s TD prop line.

This field shows what you’d have to pay for the player (in salary) if you wanted a guaranteed touchdown from him, based on his probability of scoring and his current salary. Lower numbers are better.

A touchdown here refers only to a rushing or receiving touchdown. This field has no relation to passing touchdowns.

TD Cost = Salary / Probability of a touchdown

Here’s a quick example:

In the below screenshot of the Player List we have the [TDCost] field displayed.

In the case of David Montgomery, his -213 prop line translates into a 68.05% probability of scoring a TD.

Therefore, we simply take his $6.6k salary and divide by .6805 to get his TDCost of $9.70.

In other words, the fair value of David Montgomery would be $9.7k ($9,700 salary) — based on Vegas odds — if he were guaranteed to score a rushing or receiving TD.

Note: This field does not account for vig in it’s probabilities, but all players use the same formula so they are nonetheless comparable.