Running it Twice.....what are the dis/advantages???

I was playing a 2/5 PLO8/b and flopped the nut king high straight. My opponent flopped the top set. Flop was KQ9 rainbow. He had KKxx and I had JT98. He leads out(heads-up) and I re-raise the pot, it was like a $450 reraise.

This will put him all in, so he asked me if i wanted to run them twice. I had never done it before and I agreed. I won the first run and he hit boat on second run.

So we split the pot. Are there any advantages, say when your opponent has no re-draws, or certain situations in which one person has an advantage to run them twice?

[Ribbo]

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I was playing a 2/5 PLO8/b and flopped the nut king high straight. My opponent flopped the top set. Flop was KQ9 rainbow. He had KKxx and I had JT98. He leads out(heads-up) and I re-raise the pot, it was like a $450 reraise.

This will put him all in, so he asked me if i wanted to run them twice. I had never done it before and I agreed. I won the first run and he hit boat on second run.

So we split the pot. Are there any advantages, say when your opponent has no re-draws, or certain situations in which one person has an advantage to run them twice?

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No, the odds are exactly the same whether you run it once or five times. The only difference is the variance.

[somapopper]

I'd say you should always run it twice if your opponent wants to. Ahead or behind it lowers your variance, and if I don't gain any EV by increasing my variance, then I'm pretty much always willing to lower it.

[sy_or_bust]

That doesn't make any sense. It won't lower the variance of a losing hand in the sense you think it will. You'll lose more if you run a worse hand twice (obviously).

[somapopper]

It's not obvious to me. Say you're a 30/70 dog, the more times you run it the closer you come to winning exactly 30% of the time. Variance could be good or bad for you on this particular hand, but you don't know before the dealer puts down the cards.

Now, if you were always getting your cards in with the worst of it, obviously you wouldn't want to run it twice, as variance would be your only chance to show a profit.

What of this do you disagree with?

edit: Also, if you would lose more running it twice with a worse hand, that means you'd have to win more running it twice with a better hand.

[Ribbo]

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That doesn't make any sense. It won't lower the variance of a losing hand in the sense you think it will. You'll lose more if you run a worse hand twice (obviously).

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No you wont, you will lose EXACTLY THE SAME AMOUNT as expected in the long term no matter how many times you run it. Running it multiple times will not under any circumstances change the EV. Please do not argue this point as it's 3am and I don't want to bust out the math on you.

[Rick Nebiolo]

It's all equal in terms of EV as mentioned elsewhere in this thread.

That said, I know one guy who has a large BR relative to the limits he plays and he never runs it twice or thrice. His reason is that if his opponent is variance adverse, he has a chance to put him on tilt by increasing his risk.

~ Rick

[Wintermute]

Question: when you run it twice, do you shuffle the first turn/river back into the deck before running it the second time? Without replacement, the EV will change.

[somapopper]

I'd say this sort of thing would be the only reason to ever not run it twice. Trouble is that most games are gonna be much more profitable with happy folks in them then angry folks, so usually I think the best move is to oblige.

[somapopper]

I don't think anybody ever shuffles again, because that would always be a horrible deal for somebody.