head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

Execution · Practiced Mastery
An arcade mobile racer of nitro boosts, drifts, and card-based car upgrades.

Execution · Practiced Mastery
A kart racer with an adventure structure and three vehicle types, lighter on item chaos than its rivals.
Asphalt 9: Legends leans Execution (Practiced Mastery); Diddy Kong Racing leans Execution (Practiced Mastery).
Diddy Kong Racing leans a little harder on execution, though the gap is small.
Asphalt 9: Legends
Drift and nitro timing on touch or pad
Diddy Kong Racing
Drift boosts across car, hovercraft and plane demand precision.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Asphalt 9: Legends
Mostly bots and asynchronous ghosts
Diddy Kong Racing
Multiplayer item duels add mild prediction; AI is scripted.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Asphalt 9: Legends
Card-pack upgrade rolls
Diddy Kong Racing
Balloon pickups and items inject moderate randomness.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Asphalt 9: Legends
Routes, touchdrive lines, and car progression
Diddy Kong Racing
Vehicle choice, balloon upgrade routes and boss strategies converge.
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.