Analytics by opening variations

Hello,

I want to know from my games which are the openings variations I played less well.

Is there any tool that gives me stats about my performance in the opening phase, by opening variations ?

The Insight feature in chess.com seems not to give that kind of information.

Than you.

Stats > Openings has a selection of your most played but has limited depth you can look at.

More > Explorer and switching to My Games will let you manually drill down into specific positions. 

Both tools have an option to switch between you playing white or black 

Thank you for your reply. I believe the options you mentioned just tells me how many games I won or lost per opening variations. 

What i would like is a tool that tells me how well or bad I did only in the opening phase per opening variation. In this way I could identify which open variations I need to study more.

The tool you want is a spreadsheet.

Across the top you have DatePlayed , TimeControl , YourColor , YourElo , OpponentsElo , YourPoints (1|0.5|0) , Opening , WinningExpectancy.

For the data rows you have your game data, except WinningExpectancy is a calculated column based on YourElo and OpponentsElo. You can search on the web for the formula. Try to stay away from linear formulas where WinningExpectancy can be less than zero or greater than one. Elo's original formula is non-linear and plenty good enough for this purpose.

Sort by DatePlayed, filter on YourColor and then on Opening. For each color+opening combination take the ten most recent games. If there are fewer than ten games for that opening then you should consider ignoring that opening until you get more experience. An alternative is to aggregate the openings, e.g. instead of five games in Dragon and five games in Taimanov you have ten games in Sicilian. Anyway, for the ten games, find the sum of YourPoints minus the sum of WinningExpectancy.

Comparing white to white and black to black, the smallest sum is the opening where you are worst. I didn't mention how to use the TimeControl column, I leave that as an exercise for the student.