Bovada stats question

I have following problem and I would like to ask other members if they see what I see. And I would like to kindly ask Bettingpartners to clarify it.

When I click on the stats of one particular player and see day by day stats, I can clearly see very interesting thing. Apparently when he has a bad day and loses all money, as yield (from which commission is counted) is counted always exactly 80%. Compare green and red rectangles on the picture.

Does it happen to everyone? And why? Why is from the amount lost deducted 20% and from the rest of 80% is counted my commisssion? Maybe it works both ways - so when player makes money, there is the 20% insurance.

https://www.gpwa.org/forum/images/im...om/2vsgk7k.png

Interesting ... I don't see it quite as clear as this example ...
But the second player I looked at did have a similar 80% ratio on some days.

Date Handle NGR Ratio.
1/9 ...47.00 ...7.36 15.6%
2/9 .....0.00 ...0.00 N.A
3/9 .482.95 141.58 29.3%
4/9 ...20.97 ..16.78 80.0%
5/9 .200.00 160.00 80.0%

So yes I am seeing the same pattern ... it only becomes obvious when a player loses all bets.
And ... no I do not know what the 20% automated charge / fee is.

I'd also like to understand what this pattern is showing for sports betting revenues and why it is not discussed in the affiliate set-up.
It would explain why our sports betting there pretty much breaks even ...

Are there similar charges applied to the other segments (casino, poker) ... it's impossible to tell from the report.

The 80% occurs only when all what the player bets is lost.

I have a whale in my account that is betting on huge odds, so most of the days he loses everything he bets, but few times wins huge. This is how I saw the pattern.

On the other side I trust bettingpartners. I think at least for me the ratio deposits/commission is the most favourable from all shops. Still I am very curious what does this mean.