Originally posted by HollyMichelle
What ROI should be attainable for 9 man $1.50 turbo SNGs in today's climate?
My sample (135) games is obviously nothing so I just wanted to know what I should be hoping for after 500-750 games?
I don't know how the play is in the $1.50 turbos, and the level of play of your opponents determines the maximum achievable and reasonably achievable ROIs.
I can say that after n tournaments, the standard deviation for your ROI is about 150%/Sqrt(n), and it's not a big surprise to run up to 2 standard deviations above or below your expected ROI, +- 300%/Sqrt(n). So, it takes about 1000 tournaments to be confident that your result will be within 10% of your true expected result. After 135 tournaments your 95% confidence interval is your observed result +- 25%.
Should I be worried if there is a big difference between $won and EV$won?
It's not surprising to see a difference of up to about 200%/Sqrt(n) between your $won and luck-adjusted $ won after n tournaments. The luck-adjusted result is a little more accurate at predicting your ROI, but it can be flat or negative for solid winning players for stretches of a few hundred tournaments.
Running above or below EV does not say anything about your playing style. You can play well and run either way, or badly and run either way. You can play loosely or tightly and run above or below EV.