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
Arceus
Normal
DEFENSIVE CHECK
View matchup
720.95
56.0%
Standard error 3.10 points
▾
Ditto vs. Arceus: 0-0 (0 - 0%)
02
Sneasler
FightingPoison
OFFENSIVE CHECK
View matchup
31.185
72.2%
Standard error 8.02 points
▾
252+ Atk Sneasler Close Combat vs. 252 HP / 0 Def Ditto: 768-906 (256 - 302%) -- guaranteed OHKO
03
Arceus-Ground
Ground
DEFENSIVE CHECK
View matchup
344.83
55.5%
Standard error 4.43 points
▾
Ditto vs. Arceus-Ground: 0-0 (0 - 0%)
04
Calyrex-Shadow
PsychicGhost
SOFT CHECK
View matchup
1,282.142
44.9%
Standard error 2.38 points
▾
252+ SpA Calyrex-Shadow Psyshock vs. 252 HP / 0 Def Ditto: 306-361 (102 - 120.3%) -- guaranteed OHKO
05
Kingambit
DarkSteel
DEFENSIVE CHECK
View matchup
144.418
61.3%
Standard error 6.91 points
▾
Ditto vs. Kingambit: 0-0 (0 - 0%)
06
Gliscor
GroundFlying
SOFT CHECK
View matchup
328.706
50.1%
Standard error 4.54 points
▾
252+ Atk Gliscor Earthquake vs. 252 HP / 0 Def Ditto: 258-304 (86 - 101.3%) -- 12.5% chance to OHKO
07
Miraidon
ElectricDragon
SOFT CHECK
View matchup
808.088
43.7%
Standard error 2.98 points
▾
252+ SpA Hadron Engine Miraidon Electro Drift vs. 252 HP / 252+ SpD Ditto in Electric Terrain: 352-415 (117.3 - 138.3%) -- guaranteed OHKO
08
Ho-Oh
FireFlying
SOFT CHECK
View matchup
855.035
42.5%
Standard error 2.89 points
▾
252+ Atk Ho-Oh Brave Bird vs. 252 HP / 0 Def Ditto: 384-453 (128 - 151%) -- guaranteed OHKO
09
Arceus-Fairy
Fairy
DEFENSIVE CHECK
View matchup
108.713
62.1%
Standard error 7.94 points
▾
Ditto vs. Arceus-Fairy: 0-0 (0 - 0%)
10
Smeargle
Normal
SOFT CHECK
View matchup
308.285
48.1%
Standard error 4.91 points
▾
252+ Atk Smeargle Nuzzle vs. 252 HP / 0 Def Ditto: 17-21 (5.6 - 7%)
11
Ting-Lu
DarkGround
SOFT CHECK
View matchup
216.498
50.3%
Standard error 5.76 points
▾
252+ Atk Ting-Lu Earthquake vs. 252 HP / 0 Def Ditto: 285-336 (95 - 112%) -- 68.8% chance to OHKO
12
Koraidon
FightingDragon
SOFT CHECK
View matchup
931.993
34.6%
Standard error 2.65 points
▾
252+ Atk Orichalcum Pulse Koraidon Collision Course (133.3251953125 BP) vs. 252 HP / 0 Def Ditto: 1170-1376 (390 - 458.6%) -- guaranteed OHKO
13
Flutter Mane
GhostFairy
OFFENSIVE CHECK
View matchup
22.497
64.3%
Standard error 10.10 points
▾
252+ SpA Flutter Mane Moonblast vs. 252 HP / 252+ SpD Ditto: 195-229 (65 - 76.3%) -- guaranteed 2HKO
14
Terapagos
Normal
DEFENSIVE CHECK
View matchup
63.243
58.6%
Standard error 8.70 points
▾
Ditto vs. Terapagos: 0-0 (0 - 0%)
15
Iron Treads
GroundSteel
SOFT CHECK
View matchup
152.13
50.8%
Standard error 6.79 points
▾
252+ Atk Iron Treads Earthquake vs. 252 HP / 0 Def Ditto: 288-340 (96 - 113.3%) -- 75% chance to OHKO
16
Necrozma-Dusk-Mane
PsychicSteel
SOFT CHECK
View matchup
116.408
54.5%
Standard error 7.76 points
▾
252+ Atk Necrozma-Dusk-Mane Sunsteel Strike vs. 252 HP / 0 Def Ditto: 369-435 (123 - 145%) -- guaranteed OHKO
17
Kyogre
Water
SOFT CHECK
View matchup
184.399
47.4%
Standard error 6.12 points
▾
252+ SpA Kyogre Water Spout (150 BP) vs. 252 HP / 252+ SpD Ditto in Rain: 493-582 (164.3 - 194%) -- guaranteed OHKO
18
Wo-Chien
DarkGrass
DEFENSIVE CHECK
View matchup
22.264
62.6%
Standard error 10.25 points
▾
Ditto vs. Wo-Chien: 0-0 (0 - 0%)
19
Arceus-Poison
Poison
DEFENSIVE CHECK
View matchup
28.34
58.1%
Standard error 9.27 points
▾
Ditto vs. Arceus-Poison: 0-0 (0 - 0%)
20
Calyrex-Ice
PsychicIce
SOFT CHECK
View matchup
172.413
44.4%
Standard error 6.22 points
▾
252+ Atk Calyrex-Ice Close Combat vs. 252 HP / 0 Def Ditto: 612-722 (204 - 240.6%) -- guaranteed OHKO
21
Skeledirge
FireGhost
SOFT CHECK
View matchup
107.069
52.3%
Standard error 8.24 points
▾
252+ SpA Skeledirge Torch Song vs. 252 HP / 252+ SpD Ditto: 141-166 (47 - 55.3%) -- 71.9% chance to 2HKO
22
Incineroar
FireDark
SOFT CHECK
View matchup
120.777
48.2%
Standard error 7.70 points
▾
252+ Atk Incineroar Drain Punch vs. 252 HP / 0 Def Ditto: 294-348 (98 - 116%) -- 87.5% chance to OHKO
23
Corviknight
FlyingSteel
SOFT CHECK
View matchup
135.369
45.8%
Standard error 7.23 points
▾
252+ Atk Corviknight Brave Bird vs. 252 HP / 0 Def Ditto: 294-346 (98 - 115.3%) -- 87.5% chance to OHKO
24
Clodsire
PoisonGround
SOFT CHECK
View matchup
112.55
48.7%
Standard error 7.99 points
▾
252+ Atk Clodsire Earthquake vs. 252 HP / 0 Def Ditto: 222-262 (74 - 87.3%) -- guaranteed 2HKO
25
Glimmora
RockPoison
SOFT CHECK
View matchup
173.304
41.0%
Standard error 6.07 points
▾
0- SpA Glimmora Power Gem vs. 252 HP / 252+ SpD Ditto: 108-127 (36 - 42.3%) -- guaranteed 3HKO
26
Dondozo
Water
SOFT CHECK
View matchup
63.965
49.7%
Standard error 8.84 points
▾
252+ Atk Dondozo Wave Crash vs. 252 HP / 0 Def Ditto: 321-378 (107 - 126%) -- guaranteed OHKO
27
Hatterene
PsychicFairy
SOFT CHECK
View matchup
91.953
48.6%
Standard error 8.69 points
▾
252+ SpA Hatterene Misty Explosion vs. 252 HP / 252+ SpD Ditto: 205-243 (68.3 - 81%) -- guaranteed 2HKO
28
Ribombee
BugFairy
SOFT CHECK
View matchup
108.817
39.6%
Standard error 6.44 points
▾
252+ SpA Ribombee Moonblast vs. 252 HP / 252+ SpD Ditto: 153-180 (51 - 60%) -- guaranteed 2HKO
29
Eternatus
PoisonDragon
SOFT CHECK
View matchup
65.928
46.9%
Standard error 8.31 points
▾
252+ SpA Eternatus Dynamax Cannon vs. 252 HP / 252+ SpD Ditto: 214-253 (71.3 - 84.3%) -- guaranteed 2HKO
30
Chien-Pao
DarkIce
SOFT CHECK
View matchup
83.429
43.4%
Standard error 7.62 points
▾
252+ Atk Sword of Ruin Chien-Pao Sacred Sword vs. 252 HP / 0 Def Ditto: 486-572 (162 - 190.6%) -- guaranteed OHKO
Ranked #11 with 15.38% usage. Sorted by conservative score.