Is Forretress viable in Gen 5 OU?

Forretress is ranked #28 in Gen 5 OU with 7.32% usage according to Smogon May 2026 - Jul 2026 data.

What beats Forretress in Gen 5 OU?

Ferrothorn has the strongest conservative score in this observed May 2026 - Jul 2026 sample. The target was knocked out or switched out in 27.1% of 30.04942689250337 relevant encounters. Standard error is 8.1 points. Sets and switch conditions can change the result.

How are Forretress matchup checks ranked in Gen 5 OU?

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

Forretress counters

Gen 5 OU · Sorted by p − 4 standard errors · Smogon source period May 2026 - Jul 2026 · Generated 2026-08-05

#0205 Forretress

BugSteel

USAGE 7.3% #28

ABILITYSturdy

BASE STATS

HP 75

ATK 90

DEF 140

SPA 60

SPD 60

SPE 40

BST465

TYPE MATCHUPS

4×

Fire

½×

NormalIcePsychicBugDragonSteelFairy

¼×

Grass

0×

Poison

Moves

Rapid Spin 99.9% Spikes 87.2% Earthquake 77.1% Gyro Ball 51.6% Pain Split 23.1% Volt Switch 18.5% Hidden Power Fire 12.6% Toxic Spikes 9.9%

Items

Leftovers 93.2% Custap Berry 3.1% Rocky Helmet 3.0% Shed Shell 0.5% Lum Berry 0.1% Eject Button 0.1% Sitrus Berry 0.0% Occa Berry 0.0%

Abilities

Sturdy53.2%Overcoat46.8%

Common Teammates

Browse Gen 5 OU teams using Forretress →

Explore Forretress + Ferrothorn teams -5 score

Leading observed checks

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

Team core to explore

Forretress + Gliscor 56.8% 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

Ferrothorn

GrassSteel SOFT CHECK View matchup

30.049

-5.4

27.1% Standard error 8.11 points

DAMAGE CALC

252+ Atk Ferrothorn Explosion vs. 252 HP / 0 Def Forretress: 89-105 (25.1 - 29.6%) -- 0.1% chance to 4HKO after Leftovers recovery

View Ferrothorn counters → Teams with Ferrothorn →

Ranked #28 with 7.32% usage. Sorted by conservative score.