Grimer best PvP IVs
The best Grimer IVs for Great League in Pokémon GO are 10/15/14 — 10 attack, 15 defense and 14 HP. That spread reaches CP 1498 at level 50 and gives the highest stat product of all 4,096 possible IV combinations. A perfect 15/15/15 Grimer ranks #43 of 4,096 in Great League, at 98.6 % of the best stat product.
Open Grimer 10/15/14 in the IV ranker
Best Grimer IVs by league
| League | Rank 1 IV | Lv | CP | 15/15/15 |
|---|---|---|---|---|
| Little | 1/15/15 | 14 | 498 | #2,298 |
| Great | 10/15/14 | 50 | 1498 | #43 |
| Ultra (under cap) | 15/15/15 | 50 | 1553 | #1 |
| Master | 15/15/15 | 50 | 1553 | #1 |
Grimer never reaches the 2,500 CP cap of Ultra League: at level 50 it maxes out at CP 1553. In that league nothing is held back by the cap, so the highest IVs simply win and 15/15/15 is best — the same as in Master League.
Top 10 Grimer IVs for Little League
| # | IV | Lv | CP | Atk | Def | HP | % |
|---|---|---|---|---|---|---|---|
| 1 | 1/15/15 | 14 | 498 | 68.0 | 52.5 | 102 | 100.0 |
| 2 | 0/12/11 | 14.5 | 500 | 68.7 | 51.9 | 102 | 99.9 |
| 3 | 0/13/9 | 14.5 | 500 | 68.7 | 52.4 | 101 | 99.9 |
| 4 | 0/11/13 | 14.5 | 500 | 68.7 | 51.4 | 103 | 99.9 |
| 5 | 0/14/7 | 14.5 | 500 | 68.7 | 52.9 | 100 | 99.8 |
| 6 | 0/10/15 | 14.5 | 500 | 68.7 | 50.9 | 104 | 99.8 |
| 7 | 0/15/5 | 14.5 | 499 | 68.7 | 53.4 | 99 | 99.8 |
| 8 | 2/14/15 | 14 | 499 | 68.5 | 52.0 | 102 | 99.8 |
| 9 | 2/15/13 | 14 | 499 | 68.5 | 52.5 | 101 | 99.7 |
| 10 | 2/15/14 | 14 | 500 | 68.5 | 52.5 | 101 | 99.7 |
Top 10 Grimer IVs for Great League
| # | IV | Lv | CP | Atk | Def | HP | % |
|---|---|---|---|---|---|---|---|
| 1 | 10/15/14 | 50 | 1498 | 121.8 | 88.2 | 171 | 100.0 |
| 2 | 9/15/15 | 50 | 1491 | 121.0 | 88.2 | 172 | 99.9 |
| 3 | 10/14/15 | 50 | 1494 | 121.8 | 87.4 | 172 | 99.6 |
| 4 | 11/15/13 | 49.5 | 1496 | 122.3 | 88.0 | 170 | 99.5 |
| 5 | 11/15/14 | 49.5 | 1499 | 122.3 | 88.0 | 170 | 99.5 |
| 6 | 11/15/15 | 49 | 1494 | 122.0 | 87.7 | 171 | 99.5 |
| 7 | 10/15/13 | 50 | 1494 | 121.8 | 88.2 | 170 | 99.4 |
| 8 | 10/15/15 | 49.5 | 1493 | 121.5 | 88.0 | 171 | 99.4 |
| 9 | 11/13/15 | 50 | 1498 | 122.7 | 86.6 | 172 | 99.3 |
| 10 | 9/15/14 | 50 | 1488 | 121.0 | 88.2 | 171 | 99.3 |
Rank 1 IVs across the evolution line
IVs never change when a Pokémon evolves, so the spread you want depends on the league you are building for.
| Pokémon | Little | Great | Ultra |
|---|---|---|---|
| Grimer | 1/15/15 CP 498 | 10/15/14 CP 1498 | 15/15/15 CP 1553 |
| Muk | ✕ | 0/15/14 CP 1493 | 0/15/14 CP 2495 |
How good is Grimer in the current meta?
PvPoke rates Grimer #478 of 1,154 in Great League, scoring 75.5 out of 100, most often with Poison Jab, Sludge, Mud Bomb.
| League | PvPoke rank | Score | Usual moves |
|---|---|---|---|
| Great | #478 of 1,154 | 75.5 | Poison Jab, Sludge, Mud Bomb |
That answers a different question from the rest of this page. The IV ranks above tell you which Grimer to build; this tells you whether it is worth building at all. Rankings and movesets come from PvPoke, who run the battle simulation behind them, and change as the meta does.
How to find a good Grimer
The search-string generator builds a string you can paste into the search bar in Pokémon GO. It finds catches whose CP, HP and appraisal stars match the top IV spreads above, including pre-evolutions, so you can check a whole storage box in one go.
To check a Grimer you already own, open the IV ranker and set its IVs.
Grimer PvP IV questions
What are the best Grimer IVs for Great League?
10/15/14 — 10 attack, 15 defense and 14 HP. It reaches CP 1498 at level 50 and has the best stat product of all 4,096 IV combinations.
Is a 15/15/15 Grimer good for Great League?
No. A perfect 15/15/15 Grimer only ranks #43 of 4,096 in Great League. Under a CP cap, low attack lets a Pokémon reach a higher level, which gives more defense and HP for the same CP.
What CP is a rank 1 Grimer in Great League?
CP 1498 at level 50, without best buddy. Best buddy adds one level, which changes both the CP and the ranking.
Ranked by stat product (attack × defense × HP) at the highest level under the CP cap, out of all 4,096 IV combinations, without best buddy. Shadow and purified Pokémon rank the same as regular ones. Little League checks the 500 CP cap and that the Pokémon is unevolved with an evolution ahead of it; limited-time cups may add further restrictions. Base stats and meta rankings from PvPoke, used under the MIT licence. Updated 2026-11-11.