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 · Twitch Chaos
Kart racing with random item pickups and drift timing on themed tracks.

Execution · Practiced Mastery
Co-op FPS about four masked crooks holding out through scripted heist assaults.
Madagascar Kartz leans Execution (Twitch Chaos); Payday: The Heist 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.
Madagascar Kartz
Steering, drifting and item timing matter in races
Payday: The Heist
Holding off assault waves takes solid gunplay
Madagascar Kartz leans a little harder on reads, though the gap is small.
Madagascar Kartz
Rubber-band AI is scripted, not adaptive prediction
Payday: The Heist
Police waves are scripted spawns
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Madagascar Kartz
Random item pickups swing race outcomes
Payday: The Heist
Drill failures and objective locations shuffle
Payday: The Heist leans a little harder on optimization, though the gap is small.
Madagascar Kartz
Track shortcuts and item management reward knowledge
Payday: The Heist
Crew positioning and objective sequencing per heist
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.