head to head
Neither is simply harder - they are hard in different places. NFL 2K1 demands more variance; StarCraft demands more optimization.

Execution · Grand Arena
A football sim testing stick execution, play-call reads, and playbook optimisation against opponents.

Optimization · Grand Arena
A real-time strategy classic where perfected build orders and mechanical speed decide most matches.
NFL 2K1 leans Execution (Grand Arena); StarCraft leans Optimization (Grand Arena).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
NFL 2K1
Precise stick control on passes and jukes matters
StarCraft
APM and micro control ceiling is huge
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
NFL 2K1
Reading a human opponent's play-calls is central
StarCraft
scouting and predicting human opponent builds
NFL 2K1 leans clearly harder on variance.
NFL 2K1
Fumbles and catch outcomes add measured chaos
StarCraft
minimal hidden info beyond fog of war
StarCraft leans clearly harder on optimization.
NFL 2K1
Playbook knowledge and matchup exploitation reward study
StarCraft
build orders and economy are near-solvable
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.