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
01
Garchomp
DragonGround
SOFT CHECK
View matchup
214.267
42.0%
Standard error 4.56 points
▾
252+ Atk Life Orb Garchomp Dragon Claw vs. 252 HP / 0 Def Garchomp: 205-244 (95.3 - 113.4%) -- 75% chance to OHKO
02
Basculegion
WaterGhost
SOFT CHECK
View matchup
115.568
47.6%
Standard error 6.38 points
▾
252+ Atk Mystic Water Adaptability Basculegion Wave Crash vs. 252 HP / 0 Def Garchomp: 170-202 (79 - 93.9%) -- guaranteed 2HKO
03
Sylveon
Fairy
SOFT CHECK
View matchup
63.423
45.9%
Standard error 6.26 points
▾
252+ SpA Fairy Feather Pixilate Sylveon Hyper Beam vs. 252 HP / 252+ SpD Garchomp: 288-342 (133.9 - 159%) -- guaranteed OHKO
04
Kingambit
DarkSteel
SOFT CHECK
View matchup
161.857
41.6%
Standard error 5.23 points
▾
252+ Atk Black Glasses Kingambit Kowtow Cleave vs. 252 HP / 0 Def Garchomp: 103-123 (47.9 - 57.2%) -- 89.5% chance to 2HKO
05
Incineroar
FireDark
SOFT CHECK
View matchup
332.317
31.8%
Standard error 3.45 points
▾
252+ Atk Incineroar Darkest Lariat vs. 252 HP / 0 Def Garchomp: 76-91 (35.3 - 42.3%) -- guaranteed 3HKO
06
Pelipper
WaterFlying
SOFT CHECK
View matchup
53.98
43.9%
Standard error 6.75 points
▾
252+ SpA Pelipper Weather Ball (100 BP Water) vs. 252 HP / 252+ SpD Garchomp in Rain: 93-109 (43.2 - 50.6%) -- 2.3% chance to 2HKO
07
Sneasler
FightingPoison
SOFT CHECK
View matchup
120.164
40.7%
Standard error 6.06 points
▾
252+ Atk Sneasler Close Combat vs. 252 HP / 0 Def Garchomp: 118-139 (54.8 - 64.6%) -- guaranteed 2HKO
08
Whimsicott
GrassFairy
SOFT CHECK
View matchup
127.294
39.1%
Standard error 5.85 points
▾
252+ SpA Whimsicott Moonblast vs. 252 HP / 252+ SpD Garchomp: 102-122 (47.4 - 56.7%) -- 84.8% chance to 2HKO
09
Charizard-Mega-Y
FireFlying
SOFT CHECK
View matchup
194.773
32.1%
Standard error 4.45 points
▾
252+ SpA Charizard-Mega-Y Hurricane vs. 252 HP / 252+ SpD Garchomp: 96-114 (44.6 - 53%) -- 23.4% chance to 2HKO
10
Venusaur
GrassPoison
SOFT CHECK
View matchup
54.039
40.0%
Standard error 6.66 points
▾
252+ SpA Life Orb Venusaur Leaf Storm vs. 252 HP / 252+ SpD Garchomp: 107-126 (49.7 - 58.6%) -- 98.4% chance to 2HKO
11
Farigiraf
NormalPsychic
SOFT CHECK
View matchup
48.108
40.4%
Standard error 7.07 points
▾
252+ SpA Farigiraf Psychic vs. 252 HP / 252+ SpD Garchomp: 60-72 (27.9 - 33.4%) -- 0.1% chance to 3HKO
12
Ninetales-Alola
IceFairy
SOFT CHECK
View matchup
22.624
53.5%
Standard error 10.49 points
▾
252+ SpA Never-Melt Ice Ninetales-Alola Blizzard vs. 252 HP / 252+ SpD Garchomp: 292-348 (135.8 - 161.8%) -- guaranteed OHKO
13
Gholdengo
SteelGhost
SOFT CHECK
View matchup
29.393
47.2%
Standard error 9.21 points
▾
252+ SpA Life Orb Gholdengo Make It Rain vs. 252 HP / 252+ SpD Garchomp: 121-142 (56.2 - 66%) -- guaranteed 2HKO
14
Floette-Mega
Fairy
SOFT CHECK
View matchup
68.521
43.0%
Standard error 8.29 points
▾
252+ SpA Floette-Mega Light of Ruin vs. 252 HP / 252+ SpD Garchomp: 240-284 (111.6 - 132%) -- guaranteed OHKO
15
Staraptor-Mega
FightingFlying
SOFT CHECK
View matchup
37.511
41.0%
Standard error 8.03 points
▾
Staraptor-Mega Final Gambit vs. 252 HP Garchomp: 160-160 (74.4 - 74.4%) -- guaranteed 2HKO
16
Archaludon
SteelDragon
SOFT CHECK
View matchup
41.805
36.8%
Standard error 7.46 points
▾
252+ SpA Archaludon Draco Meteor vs. 252 HP / 252+ SpD Garchomp: 188-224 (87.4 - 104.1%) -- 31.3% chance to OHKO
17
Sinistcha
GrassGhost
SOFT CHECK
View matchup
92.879
30.6%
Standard error 6.57 points
▾
252+ SpA Sinistcha Matcha Gotcha vs. 252 HP / 252+ SpD Garchomp: 58-69 (26.9 - 32%) -- guaranteed 4HKO
18
Tyranitar-Mega
RockDark
SOFT CHECK
View matchup
31.031
36.2%
Standard error 8.63 points
▾
252+ Atk Tyranitar-Mega Ice Punch vs. 252 HP / 0 Def Garchomp: 236-280 (109.7 - 130.2%) -- guaranteed OHKO
19
Toxapex
PoisonWater
SOFT CHECK
View matchup
50.023
23.8%
Standard error 6.02 points
▾
252+ SpA Toxapex Infestation vs. 252 HP / 252+ SpD Garchomp: 6-8 (2.7 - 3.7%) -- guaranteed 7HKO after trapping damage
20
Excadrill
GroundSteel
SOFT CHECK
View matchup
22.937
39.8%
Standard error 10.22 points
▾
252+ Atk Excadrill Earthquake vs. 252 HP / 0 Def Garchomp: 102-120 (47.4 - 55.8%) -- 75.4% chance to 2HKO
21
Grimmsnarl
DarkFairy
SOFT CHECK
View matchup
32.829
29.9%
Standard error 7.99 points
▾
252+ Atk Grimmsnarl Spirit Break vs. 252 HP / 0 Def Garchomp: 140-168 (65.1 - 78.1%) -- guaranteed 2HKO
22
Aerodactyl-Mega
RockFlying
SOFT CHECK
View matchup
24.034
34.6%
Standard error 9.70 points
▾
252+ Atk Tough Claws Aerodactyl-Mega Ice Fang vs. 252 HP / 0 Def Garchomp: 228-272 (106 - 126.5%) -- guaranteed OHKO
23
Raichu-Mega-Y
Electric
SOFT CHECK
View matchup
22.516
35.0%
Standard error 10.05 points
▾
252+ SpA Raichu-Mega-Y Focus Blast vs. 252 HP / 252+ SpD Garchomp: 71-84 (33 - 39%) -- 99.9% chance to 3HKO
24
Delphox-Mega
FirePsychic
SOFT CHECK
View matchup
28.41
26.3%
Standard error 8.26 points
▾
252+ SpA Delphox-Mega Psyshock vs. 252 HP / 0 Def Garchomp: 93-109 (43.2 - 50.6%) -- 2.3% chance to 2HKO
Ranked #3 with 39.24% usage. Sorted by conservative score.