head to head
vs
RunbowvsSplit/Second
Runbow leans Execution (Pure Mechanics); Split/Second leans Execution (Pure Mechanics).
RunbowSplit/Second
Axis by axis
Execution7 vs 8
Split/Second leans harder on execution: Drafting, drifting and dodging collapsing set pieces.
Reads3 vs 2
Runbow leans harder on reads: Light jostling with human racers, but little deep prediction
Variance4 vs 4
Even - both lean on variance about the same.
Optimization2 vs 4
Split/Second leans harder on optimization: Knowing every trap and shortcut converges with play.
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.