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

Execution · Twitch Chaos
A kart racer with random items and drift timing on themed circuits.

Execution · Practiced Mastery
Open-world Stone Age action game about hunting and conquering tribal outposts with tamed beasts.
Cartoon Network Racing leans Execution (Twitch Chaos); Far Cry Primal leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Cartoon Network Racing
Steering, drifting and item timing decide races
Far Cry Primal
Bow aim, melee timing, beast control under pressure
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Cartoon Network Racing
AI racers scripted, no adaptive prediction
Far Cry Primal
Scripted tribal AI never models the player
Cartoon Network Racing leans a little harder on variance, though the gap is small.
Cartoon Network Racing
Random item pickups swing race outcomes
Far Cry Primal
Wildlife encounters and patrol spawns are random
Far Cry Primal leans a little harder on optimization, though the gap is small.
Cartoon Network Racing
Shortcuts and item use reward track knowledge
Far Cry Primal
Outpost routes, crafting economy, beast taming order
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.