head to head
Counter-Strike: Global Offensive asks more than NBA 2K13, and the gap is execution.

Execution · Competitive PvP
Definitive competitive tactical FPS balancing aim mastery with team strategy.

Execution · Competitive PvP
Basketball shot-timing and scheme-reading against human or scripted defenses.
Counter-Strike: Global Offensive leans Execution (Competitive PvP); NBA 2K13 leans Execution (Competitive PvP).
Counter-Strike: Global Offensive leans clearly harder on execution.
Counter-Strike: Global Offensive
Spray control and flick precision at the top
NBA 2K13
Stick handles and shot release timing decide possessions
Counter-Strike: Global Offensive leans a little harder on reads, though the gap is small.
Counter-Strike: Global Offensive
Anti-stratting and mid-round adaptation
NBA 2K13
Online play is constant scheme and tendency reading
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Counter-Strike: Global Offensive
Information hidden until contact
NBA 2K13
Shot RNG and loose-ball physics add noise
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Counter-Strike: Global Offensive
Utility lineups, economy, and default strats
NBA 2K13
Playcalling, rosters and matchup exploits reward study
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.