# cEV Diff

#### Vodnik2017

##### Rock Star
I play mostly freerolls(MTT) and sometimes SnG (360, 180, 90).
I usually end the day, the week, the month with the positive cEV Diff
Nowhere did I find the information how to affect this indicator.
Can someone give a clue?

#### iwont20

##### look in the mirror
It's calculated this way:
cEV Diff = EV - winnings.

If cEV Diff is positive that means you're unlucky in all ins. But that's correct for single table, I've read it's impossible to calculate cEV Diff for multitable tournaments/sngs. But I don't use HM2 (as far as I understood, you talk about this program), so maybe who uses it too will answer you question properly.

#### Vodnik2017

##### Rock Star
Does anyone use a stat cEV Diff for analysis?

L

#### LuisBoaC

##### Rock Star
You need to familiarise yourself with the independent chip model (ICM).
You can't use chipEV diff to evaluate tournament play. Basically put, in cash games each chip has a monetary value that is constant forever; you can (in theory) buy-in or cash-out your chips at any time. In tournament play only a set amount of players will win any money at the end therefore the monetary value of each chip changes through the tournament. All this means that in cash games a +chipEV play is always +\$EV but in tournaments a +chipEV could actually be a -\$EV play (i.e lose you money in the long run).
Very simply this explains why for tournaments you should look at the 'ICM diff' or '\$EV diff' stat (in HM2, I don't know in PT4). There are plenty of free articles out there explaining chip expected value, dollar expected value and the independent chip model in much more detail and far better than I can - I recommend you get reading!