Pokémon GO - PVP stats list

Trainer Battles in Pokémon GO have three main leagues: Great League (up to 1,500 CP), Ultra League (up to 2,500 CP) and Master League (no limit). This list shows each Pokémon's rank 1 IVs for each league: the spread with the highest stat product (Attack × Defense × HP) under the CP cap. A low Attack IV usually ranks best, as it lets the Pokémon reach a higher level and more total bulk. Stat product compares IVs within one Pokémon. It is not a ranking of Pokémon against each other: how well one battles also depends on its moves and typing.

If you are looking to further narrow down a specific Pokémon, try the CP Calculator tool.