head to head
Neither is simply harder - they are hard in different places. Sports Champions 2 demands more reads; Super Mario Odyssey demands more optimization.

Execution · Pure Mechanics
Testing how precisely you can swing a Move controller across six sports.

Execution · Pure Mechanics
A 3D platformer whose joy lives in tight movement and capture-driven traversal.
Sports Champions 2 leans Execution (Pure Mechanics); Super Mario Odyssey leans Execution (Pure Mechanics).
Super Mario Odyssey leans a little harder on execution, though the gap is small.
Sports Champions 2
Motion-controlled swings and punches reward physical precision
Super Mario Odyssey
Precise platforming and capture-move tech ceiling.
Sports Champions 2 leans clearly harder on reads.
Sports Champions 2
Local rivals can be baited in boxing or tennis, lightly
Super Mario Odyssey
No adaptive opponents whatsoever.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Sports Champions 2
Events are deterministic given your motion
Super Mario Odyssey
Almost no randomness in level design.
Super Mario Odyssey leans clearly harder on optimization.
Sports Champions 2
Technique tips exist but systems stay shallow
Super Mario Odyssey
Moon routes and movement tech learnable.
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.