Is Forretress viable in Gen 3 OU?

Forretress is ranked #9 in Gen 3 OU with 22.38% usage according to Smogon Jul 2026 - Sep 2026 data.

What beats Forretress in Gen 3 OU?

Tyranitar has the strongest conservative score in this observed Jul 2026 - Sep 2026 sample. The target was knocked out or switched out in 79.1% of 73.68270078866843 relevant encounters. Standard error is 4.7 points. Sets and switch conditions can change the result.

How are Forretress matchup checks ranked in Gen 3 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 3 OU · Smogon source period Jul 2026 - Sep 2026

#0205 Forretress

BugSteel

USAGE 22.4% #9

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

Spikes 99.8% Rapid Spin 94.1% Explosion 80.1% Hidden Power Ghost 59.9% Hidden Power Bug 30.8% Earthquake 10.5% Zap Cannon 8.5% Counter 7.7%

Items

Leftovers 100.0% Choice Band 0.0% Lum Berry 0.0% Silk Scarf 0.0% Salac Berry 0.0% Chesto Berry 0.0% Focus Band 0.0%

Abilities

Sturdy100.0%

Common Teammates

Browse Gen 3 OU teams using Forretress →

Explore Forretress + Tyranitar teams 60 score Explore Forretress + Salamence teams 54 score Explore Forretress + Gengar teams 36 score Explore Forretress + Swampert teams 30 score Explore Forretress + Forretress teams 23 score Explore Forretress + Metagross teams 20 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 + Tyranitar 85.1% 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

Tyranitar

RockDark OFFENSIVE CHECK View matchup

73.683

60.1

79.1% Standard error 4.74 points

DAMAGE CALCSand

0- SpA Tyranitar Fire Blast vs. 252 HP / 252+ SpD Forretress: 295-348 (83.3 - 98.3%) -- guaranteed 2HKO after Leftovers recovery

View Tyranitar counters → Teams with Tyranitar →

Salamence

DragonFlying OFFENSIVE CHECK View matchup

43.91

53.8

78.6% Standard error 6.19 points

DAMAGE CALC

0- SpA Salamence Fire Blast vs. 252 HP / 252+ SpD Forretress: 333-392 (94 - 110.7%) -- 62.5% chance to OHKO

View Salamence counters → Teams with Salamence →

Gengar

GhostPoison OFFENSIVE CHECK View matchup

69.487

35.9

59.4% Standard error 5.89 points

DAMAGE CALC

252+ SpA Gengar Fire Punch vs. 252 HP / 252+ SpD Forretress: 357-420 (100.8 - 118.6%) -- guaranteed OHKO

View Gengar counters → Teams with Gengar →

Swampert

WaterGround OFFENSIVE CHECK View matchup

58.903

29.9

55.8% Standard error 6.47 points

DAMAGE CALC

252+ SpA Swampert Hydro Pump vs. 252 HP / 252+ SpD Forretress: 158-187 (44.6 - 52.8%) -- guaranteed 3HKO after Leftovers recovery

View Swampert counters → Teams with Swampert →

Forretress

BugSteel SOFT CHECK View matchup

62.943

22.6

47.8% Standard error 6.30 points

DAMAGE CALC

252+ Atk Forretress Explosion vs. 252 HP / 0 Def Forretress: 173-204 (48.8 - 57.6%) -- 53.1% chance to 2HKO after Leftovers recovery

View Forretress counters → Teams with Forretress →

Metagross

SteelPsychic SOFT CHECK View matchup

49.463

20.0

48.4% Standard error 7.11 points

DAMAGE CALC

252+ Atk Metagross Explosion vs. 252 HP / 0 Def Forretress: 229-270 (64.6 - 76.2%) -- guaranteed 2HKO after Leftovers recovery

View Metagross counters → Teams with Metagross →

Skarmory

SteelFlying SOFT CHECK View matchup

113.126

17.0

34.9% Standard error 4.48 points

DAMAGE CALC

252+ Atk Skarmory Drill Peck vs. 252 HP / 0 Def Forretress: 79-93 (22.3 - 26.2%) -- possible 5HKO

View Skarmory counters → Teams with Skarmory →

Starmie

WaterPsychic OFFENSIVE CHECK View matchup

26.114

16.8

55.7% Standard error 9.72 points

DAMAGE CALC

252+ SpA Starmie Hydro Pump vs. 252 HP / 252+ SpD Forretress: 176-208 (49.7 - 58.7%) -- 71.9% chance to 2HKO after Leftovers recovery

View Starmie counters → Teams with Starmie →

Zapdos

ElectricFlying OFFENSIVE CHECK View matchup

20.988

15.7

58.7% Standard error 10.75 points

DAMAGE CALC

252+ SpA Zapdos Thunderbolt vs. 252 HP / 252+ SpD Forretress: 164-193 (46.3 - 54.5%) -- 8.2% chance to 2HKO after Leftovers recovery

View Zapdos counters → Teams with Zapdos →

Blissey

Normal SOFT CHECK View matchup

65.98

10.7

34.1% Standard error 5.83 points

DAMAGE CALC

Blissey Seismic Toss vs. 252 HP Forretress: 100-100 (28.2 - 28.2%) -- guaranteed 5HKO after Leftovers recovery

View Blissey counters → Teams with Blissey →

Ranked #9 with 22.38% usage. Sorted by conservative score.