Stats
From Pokemon Go Wiki
Base Stats
There are 3 Hidden Stats, Stamina (HP), Attack and Defense, that make up a Pokemon's CP (Combat Power).
These values are produced by taking the pokemon's stats from the main games and running them through this formula:
- Base Attack = 2.6 * (Atk^0.46)(SpAtk^0.46)(Sp"0.04) + 3
- Base Defense = 2.6 * (Def^0.46)(SpDef^0.46)(Sp^0.04) + 3
- Base Stamina = 2 * HP
Because the speed stat is weighted so lightly in this formula, Pokemon that relied on their speed in the main games such as Electric-types will find their state lacking in Pokemon GO as we see the Bulky and Bulky-Water types like Vaporeon and Slowbro that are normally very slow have a big stat advantage.