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

Execution · Pure Mechanics
Retro arcade racer channeling Top Gear's pure lane-weaving speed.

Execution · Pure Mechanics
A crossover Olympic sports collection where waggle timing and mashing form set the podium.
Horizon Chase Turbo leans Execution (Pure Mechanics); Mario & Sonic at the Olympic Games leans Execution (Pure Mechanics).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Horizon Chase Turbo
Weaving through traffic and nailing fuel pickups
Mario & Sonic at the Olympic Games
Motion timing and mashing rhythm decide event results
Mario & Sonic at the Olympic Games leans a little harder on reads, though the gap is small.
Horizon Chase Turbo
Rival cars run fixed rubber-band logic
Mario & Sonic at the Olympic Games
Human rivals race in parallel; little interaction
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Horizon Chase Turbo
Minimal randomness in track layouts
Mario & Sonic at the Olympic Games
Events are fixed; almost no randomness
Horizon Chase Turbo leans a little harder on optimization, though the gap is small.
Horizon Chase Turbo
Car stats and lap memorization help
Mario & Sonic at the Olympic Games
Learning each event's optimal technique caps quickly
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.