Gastrodon in Pokémon GO

Type	Water / Ground
Pokédex number	#423
Base Attack / Defense / Stamina	169 / 143 / 244
Max CP, level 40 / 50 / 51	2,324 / 2,628 / 2,659
Max HP, level 50	217
Buddy distance	3 km per Candy
Second Charged Attack	50,000 Stardust and 50 Candy
Height / weight	0.9 m / 29.9 kg

Gastrodon evolution

Pokémon GO has no evolution levels: a Pokémon evolves when you spend Candy on it (sometimes with an item or a task), at any level.

Gastrodon does not evolve in Pokémon GO.

Family: Gastrodon

Gastrodon CP by level

Combat Power with perfect stats (15/15/15) and with 10/10/10. Players find that raid, egg and research catches never have a stat below 10; that floor is their measurement, not a number in the game data.

Level	CP 15/15/15	CP 10/10/10	HP 15/15/15	Note
15	996	944	134	research rewards are at most level 15 (game master)
20	1,328	1,259	154	eggs hatch at most level 20 (game master); raid catches are level 20 (players’ measurement)
25	1,660	1,574	172	raid catches in weather that boosts the boss’s type are level 25 (players’ measurement)
30	1,992	1,889	189	wild Pokémon are at most level 30 (game master)
35	2,158	2,046	197
40	2,324	2,203	204
45	2,474	2,345	211
50	2,628	2,491	217
51	2,659	2,521	218	best buddy bonus on a level 50 Pokémon

Gastrodon best moveset

Ranked by damage per second over one cycle of fast attacks and one charged attack. Assumptions: Gastrodon at level 40 with 15/15/15, a target with 180 Defense taking neutral damage, no weather boost, and the energy Gastrodon gains from being hit left out.

Fast attack	Charged attack	Damage per second
Mud Slap	Earthquake	9.5
Mud Slap	Earth Power	9.4
Hidden Power	Earthquake	8.4
Hidden Power	Earth Power	8.1
Mud Slap	Water Pulse	8.0

Fast attacks

Move	Type	Power	Energy	Time	Power / s
Hidden Power	Normal	15	15	1.5 s	10.0
Mud Slap	Ground	19	13	1.5 s	12.7	same type, ×1.2

Charged attacks

Move	Type	Power	Energy cost	Time	Power / s
Body Slam	Normal	50	33	2 s	25.0
Earth Power	Ground	100	50	3.5 s	28.6	same type, ×1.2
Earthquake	Ground	140	100	3.5 s	40.0	same type, ×1.2
Water Pulse	Water	65	50	3 s	21.7	same type, ×1.2

Gastrodon weaknesses and resistances

Damage multipliers for each attack type against Water / Ground. Pokémon GO uses ×1.6 for super effective and ×0.625 for not very effective, multiplied for two types.

Attack type	Damage
Grass	×2.56
Electric	×0.625
Fire	×0.625
Poison	×0.625
Rock	×0.625
Steel	×0.625

Gastrodon CP calculator

Level Attack IV Defense IV HP IV

CP 2,324 · HP 204

← #422 Shellos  ·  #424 Ambipom →  ·  All Pokémon in Pokémon GO

Sources: stats, moves, evolution costs and the CP multiplier for each level are from the Pokémon GO game master as published by PokeMiners (commit 8e227be, data of 28 August 2026). Which Pokémon are in the game: pogoapi.net (list of 31 January 2026). CP = ⌊(Attack+IV) × √(Defense+IV) × √(Stamina+IV) × CPM² / 10⌋, checked against pogoapi.net’s max CP table for 888 Pokémon. Raid catch levels and the 10/10/10 floor are players’ measurements; they are not in the game data. Pokémon and Pokémon GO are trademarks of their owners; this page is not affiliated with or endorsed by Niantic, Scopely, Nintendo, Creatures, GAME FREAK or The Pokémon Company.