Is Chesnaught viable in Gen 9 RU?

Chesnaught is ranked #4 in Gen 9 RU with 20.12% usage according to Smogon May 2026 - Jul 2026 data.

What beats Chesnaught in Gen 9 RU?

Necrozma has the strongest conservative score in this observed May 2026 - Jul 2026 sample. The target was knocked out or switched out in 91.5% of 20.18148109451739 relevant encounters. Standard error is 6.2 points. Sets and switch conditions can change the result.

How are Chesnaught matchup checks ranked in Gen 9 RU?

They are ranked by p minus four standard errors. Here, p is the observed fraction of relevant encounters where Chesnaught was knocked out or switched out. This is not a set-specific battle guarantee.

Chesnaught counters

Gen 9 RU · Sorted by p − 4 standard errors · Smogon source period May 2026 - Jul 2026 · Generated 2026-08-05

#0652 Chesnaught

GrassFighting

USAGE 20.1% #4

ABILITYBulletproof

BASE STATS

HP 88

ATK 107

DEF 122

SPA 74

SPD 75

SPE 64

BST530

TYPE MATCHUPS

4×

Flying

2×

FireIcePoisonPsychicFairy

½×

WaterElectricGrassGroundRockDark

Moves

Body Press 91.9% Synthesis 91.7% Knock Off 90.8% Spikes 78.8% Iron Defense 10.0% Drain Punch 8.0% Grassy Glide 7.1% Wood Hammer 6.2%

Items

Rocky Helmet 85.8% Sitrus Berry 4.7% Heavy-Duty Boots 3.1% Leftovers 3.0% Covert Cloak 1.8% Life Orb 1.1% Muscle Band 0.3% Eject Pack 0.1%

Abilities

Bulletproof99.5%Overgrow0.5%

Tera Types

Ghost 61.0% Steel 16.4% Fire 6.2% Water 6.0% Poison 5.2% Fairy 2.7% Grass 1.0% Electric 0.7%

Common Teammates

Leading observed checks

Open a matchup for a separate set-based damage estimate, or browse uploaded teams with both Pokémon.

Team core to explore

Chesnaught + Blissey 47.5% teammate usage Explore teams →

Checks & Counters

Observed target KO or switch rate is upstream p: the fraction of relevant encounters where the target was knocked out or switched out. Standard error is upstream d. The conservative score is p − 4d. These ladder observations do not prove a set-specific counter.

How to read this table

Use encounter count and standard error to judge the sample. Damage estimates below use inferred sets and remain separate from the observed ladder metric.

# Checker Encounters Conservative score Target KO or switch rate

Necrozma

Psychic OFFENSIVE CHECK View matchup

20.181

66.7

91.5% Standard error 6.21 points

DAMAGE CALC

252+ SpA Necrozma Photon Geyser vs. 252 HP / 252+ SpD Chesnaught: 306-362 (80.5 - 95.2%) -- guaranteed 2HKO

View Necrozma counters → Teams with Necrozma →

Entei

Fire OFFENSIVE CHECK View matchup

27.152

47.3

78.7% Standard error 7.85 points

DAMAGE CALC

252+ Atk Entei Sacred Fire vs. 252 HP / 0 Def Chesnaught: 278-330 (73.1 - 86.8%) -- guaranteed 2HKO

View Entei counters → Teams with Entei →

Noivern

FlyingDragon OFFENSIVE CHECK View matchup

42.495

46.0

73.2% Standard error 6.79 points

DAMAGE CALC

252+ SpA Noivern Hurricane vs. 252 HP / 252+ SpD Chesnaught: 556-660 (146.3 - 173.6%) -- guaranteed OHKO

View Noivern counters → Teams with Noivern →

Chesnaught

GrassFighting SOFT CHECK View matchup

35.005

15.9

49.7% Standard error 8.45 points

DAMAGE CALC

252+ Atk Chesnaught Drain Punch vs. 252 HP / 0 Def Chesnaught: 100-118 (26.3 - 31%) -- guaranteed 4HKO

View Chesnaught counters →

Kleavor

BugRock SOFT CHECK View matchup

24.789

-12.7

18.4% Standard error 7.78 points

DAMAGE CALC

252+ Atk Sharpness Kleavor X-Scissor vs. 252 HP / 0 Def Chesnaught: 186-220 (48.9 - 57.8%) -- 96.1% chance to 2HKO

View Kleavor counters → Teams with Kleavor →

Forretress

BugSteel SOFT CHECK View matchup

21.613

-15.2

17.4% Standard error 8.16 points

DAMAGE CALC

0 Def Forretress Body Press vs. 252 HP / 0 Def Chesnaught: 65-77 (17.1 - 20.2%) -- possible 5HKO

View Forretress counters →

Ranked #4 with 20.12% usage. Sorted by conservative score.