I searched through the forum and I see that other users are / were experiencing problems with this filter but I think my specific problem hasn't been discussed yet.
In MTTs, when I put as filters: "Allin on turn (or earlier)" + "player won or lost bbs is less than 21" I get a very strange result. On a 270k HH DB I get 6.6k results with EV bb/100 = 107 and effective bb/100 = -4.60, with STD DEV at 11.70.
I calculated the STD DEV on the total number of hands (multiplying STD DEV by the square root of the total number of hands) and as a result I get a sigma 7.78 (!) from the mean. That's like 1 chance in 390 BILLION to run that bad, lol.
I'm running like hell for sure, but I think there must definitely be some problems with this stat, otherwise the site MUST be rigged against me, lol, and I am not really ready to believe that, honestly (we are talking about pokerstars, not some shady chinese site).
I checked between the results shown and all seems fine, all pots seem to be in the 0-21bbs range and allin on turn or earlier.
Can you please check into that for me?