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
A basic arcade soccer game testing input timing and simple positioning.

Execution · Pure Mechanics
Arcade car control across loose surfaces, weather and door-to-door packs.
Champions World Class Soccer leans Execution (Practiced Mastery); Dirt 5 leans Execution (Pure Mechanics).
Dirt 5 leans a little harder on execution, though the gap is small.
Champions World Class Soccer
Passing, shooting and tackling timing carry every play
Dirt 5
Sliding off-road cars on mixed surfaces is the whole test
Champions World Class Soccer leans a little harder on reads, though the gap is small.
Champions World Class Soccer
Two-player mode lets you predict a human opponent
Dirt 5
Pack racing adds light wheel-to-wheel jockeying
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Champions World Class Soccer
Little randomness once team ratings are known
Dirt 5
Dynamic weather shifts grip unpredictably
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Champions World Class Soccer
Formation choice and team selection give a known edge
Dirt 5
Car class knowledge and line choice reward study
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.