Pokémon Prize Card Probability

Odds your key cards are prized in a Pokémon game

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In the Pokémon TCG, six of your cards start the game face-down as prizes — and if a one-of you need is among them, your whole plan can stall. This calculator uses the hypergeometric distribution to tell you exactly how likely it is that one or more copies of a card get prized, so you can judge how many copies a critical card really needs.

How it works

The six prizes are a random sample drawn without replacement from your deck, so the number of copies of a card that land in the prizes follows the hypergeometric distribution. With deck size N, prize count P, and K copies of the card, the probability that exactly k are prized is:

P(X = k) = C(K, k) * C(N - K, P - k) / C(N, P)

From this the tool reports:

  • At least one prized — one minus the probability that zero copies are prized.
  • None prized — the k = 0 term, the happy case where every copy is in your deck.
  • All copies prized — the worst case, where the card is unavailable all game until you take those prizes.
  • Expected number prized — the mean of the distribution, equal to K * P / N.

Example and notes

A single copy of a card in a 60-card deck with 6 prizes has exactly a 10% chance of being prized (6/60). Run two copies and the chance that both are prized falls to under 1%, while the chance that at least one is prized rises to about 19%. The expected number prized for that two-of is 0.2 cards.

Worth keeping in mind:

  • Higher prize risk on a must-have card is a strong argument for running more copies or adding search effects that can dig past prizes.
  • Some cards let you look at or recover prizes; this calculator measures the starting risk before any such effect.
  • Pair this with the Pokémon Draw Probability calculator to balance how easily you draw a card against how often it gets prized.
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