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my understanding is that 100% ROI is very good, but sustainable for those level online tourneys if you play really well. however, the variance is so high for these things that looking at your ROI, and comparing it to any number is just plain stupid. you'd have to play 10's of thousands of tourneys before you could have a good confidence interval on large field MTTs.

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cool... but how then do more experienced tournament players guage their win/lose rate? In bottom line figures? -/+ EV? I'm just trying to quantify things a bit.