head to head
Trackmania asks more than Tony Hawk's Underground, and the gap is execution.

Execution · Practiced Mastery
A story-driven skateboarding game still won by trick execution.

Execution · Pure Mechanics
A time-trial racer where flawless inputs over fixed tracks are everything.
Tony Hawk's Underground leans Execution (Practiced Mastery); Trackmania leans Execution (Pure Mechanics).
Trackmania leans clearly harder on execution.
Tony Hawk's Underground
Combos plus off-board tricks keep the input ceiling high
Trackmania
Pure input precision over deterministic tracks defines everything.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Tony Hawk's Underground
Story missions are scripted, not adaptive
Trackmania
No opponent; ghost runs only.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Tony Hawk's Underground
Fixed levels and mission scripts
Trackmania
Tracks are deterministic with zero randomness.
Trackmania leans a little harder on optimization, though the gap is small.
Tony Hawk's Underground
Mission and score-line routing remain solvable
Trackmania
Line optimization and shortcut discovery matter heavily.
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.