Raid catch CP methodology

How Hundo Hunter computes the hundo and floor CP for every raid catch.

SHORT ANSWER

Raid catches roll IVs in the 10-15 range at level 20 (standard) or level 25 (weather-boosted). The hundo CP is the CP at 15/15/15 IVs at the appropriate level. The min CP is the CP at 10/10/10 IVs.

RAID CATCH LEVEL

level = 20  // standard raid
level = 25  // weather-boosted raid

CPM(L20) = 0.5974
CPM(L25) = 0.6679

Niantic publishes the raid-catch level in the game's server data. It's not RNG — every raid catch is exactly L20 or L25 depending on weather state at the time of the catch.

Weather boost applies if the in-game weather matches the boss's type. Sunny weather boosts Fire/Grass/Ground, rainy boosts Water/Electric/Bug, etc. See the /weather page for the full mapping.

IV RANGE

Wild catches roll each IV in 0-15 independently — a 1-in-4 096 chance of a hundo.

Raid catches and weather-boosted catches roll each IV in 10-15 — a 1-in-216 chance of a hundo (a 19× improvement).

Research breakthroughs roll IVs in 1-15 — slightly worse than raids, but the encounter is guaranteed and you can re-skip.

CP AT THE CATCH

CP(min) = floor(0.5974² × (base_Atk + 10) × √((base_Def + 10) × (base_Sta + 10)) / 10)
CP(hundo) = floor(0.5974² × (base_Atk + 15) × √((base_Def + 15) × (base_Sta + 15)) / 10)

Weather-boosted: replace 0.5974 with 0.6679.

If your raid catch CP matches the hundo column exactly, you got 15/15/15 — confirmed hundo.

If your CP is below the min column, the catch was somehow not actually a raid encounter — could be a glitch or a different encounter type.

Anything in between is a non-hundo with some specific IV spread that needs the IV calculator to pin down.

∞ · TOOLS THAT USE THIS METHODOLOGY

IV Calculator →

Raid counter database →

Weather boost guide →