head to head
Mario Kart 8 asks more than Stream Racer, and the gap is execution.

Execution · Twitch Chaos
A kart racer where controlled chaos from random items tempers otherwise precise driving skill.

Variance · Twitch Chaos
A Twitch party racer where audience chaos deliberately outweighs driving skill.
Mario Kart 8 leans Execution (Twitch Chaos); Stream Racer leans Variance (Twitch Chaos).
Mario Kart 8 leans clearly harder on execution.
Mario Kart 8
precise drifting and item timing matter
Stream Racer
Steering matters but chaos caps its value
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Mario Kart 8
minimal, mostly reacting not predicting
Stream Racer
Viewer racers are too chaotic to meaningfully model
Mario Kart 8 leans a little harder on variance, though the gap is small.
Mario Kart 8
item boxes are heavily randomized
Stream Racer
Dozens of audience cars make every race a dice roll
Mario Kart 8 leans clearly harder on optimization.
Mario Kart 8
track lines and item strategy solvable
Stream Racer
Minimal systems beneath the party chaos
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.