Fundiver is definitely correct that it's all hands you're dealt in.
Also one thing to be aware of in cash winrate discussions is that in limit games, BB / 100 is Big Bets / 100 hands with one Big Bet = 2 big blinds.
In no-limit games, big blinds / 100 hands (bb/100) is standard. But occasionally you do see people using the capital BB/100 to mean big bets per hundred hands in no-limit also. So it can be worth clarifying if you're talking to someone that they mean the normal no-limit bb / 100.