[nomdeplume]

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There is no direct, predictable correlation between VPIP and winrate. Mike Caro wrote about this in Super System 2. He said that one pro could play twice as many hands as another, and they could still make the same amount of money because a lot of hands in poker are pretty much break even hands. In another words you don't win money over the long run playing these hands, but you don't lose anything either. Therefore one pro could double another pro's VPIP, but they would still make the same amount.

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Thank you for your reply, I've just read the relevant section in SS2. I understand that in the long run, since many of the hands have virtually zero ev, they'll make the same amount of money.

But this begs the question, in this case, why does anyone play these marginal hands? If they have almost no benefit in terms of your ev, why bother? Why bother playing small suited connectors for example?