Weak toFlyingPsychicFairy ×1.6

Attacker	Type	Moveset	DPS
Mewtwo	Psychic	ConfusionPsystrikeLegacy	64.6
Enamorus	FairyFlying	Fairy WindFly	62.4
Tapu Lele	PsychicFairy	ConfusionNatures MadnessLegacy	58.2
Yveltal	DarkFlying	GustOblivion WingLegacy	55.3
Alakazam	Psychic	ConfusionPsychicLegacy	55.2
Toucannon	NormalFlying	PeckBeak BlastLegacy	54.7
Moltres	FireFlying	Wing AttackFly	54.5
Staraptor	NormalFlying	GustFlyLegacy	53.7
Azelf	Psychic	ConfusionFuturesight	53.5
Hoopa	PsychicGhost	ConfusionPsychic	53.2
Espeon	Psychic	ConfusionPsychic	53.2
Regigigas	Normal	Zen HeadbuttCrush GripLegacy	53.1

Windy boosts the Psychic attacks above. Overcast boosts Machop.

Level 40, 15 attack IV, costed against Machop's own defense and typing, one per evolution family.

Machop's moveset, CP and shiny All counters Raid board

Questions people ask

What is Machop weak to in Pokémon GO?

Machop takes 1.6 times from Flying, Psychic and Fairy.

What's the best counter to Machop?

Mewtwo with Confusion and Psystrike, worth 64.6 damage per second against Machop's own defense. The full ranking is above.