How every model actually works.

Balladex puts a dollar figure on a card, calls a contract an overpay and ranks players all-time. Each of those is a model, and a model nobody can inspect is just an assertion. These documents give the inputs, the arithmetic, a worked example and — the part most sites leave out — a plain statement of what each model is not.

The models

Each document names the files it describes, so it can be checked against the code.

Valuation modelHow Balladex models card value

Every player's card carries a modeled dollar value built from two opposing forces — a legacy floor that only ever rises, and a performance value that moves with this season's projection. The card is worth whichever force is winning.

How does Balladex value a sports card?Valuation modelHow Balladex decides who is overpaid

The engine converts projected on-court value into a market dollar figure, sets it against the player's actual salary, and reports the surplus or the overpay in dollars rather than adjectives.

How does Balladex work out whether a player is overpaid?Ranking modelHow Balladex ranks players all-time

One score — career production, peak season, accolades and longevity — ranks every player. What changes between sports is not the method but how far back the data honestly reaches.

How does Balladex decide who the greatest players are?

On citing these. Every figure Balladex publishes from a model is labeled an estimate, never a fact. These documents exist so that label means something: you can read what produced the number and decide for yourself how much weight it carries.