Is getting KK all in preflop profitable in FR?

So during tonight's session of ~7500 hands of Zoom 25nl, I ran KK into AA 6 times, each time getting it in preflop. I am definitely not good enough to fold KK pre really ever.

It sparked a thought though, so I went to my database because I wanted to see if getting all the chips in preflop with KK was profitable. Here's what I found:



this is a sample of ~730,000 hands

For me, getting it in with KK preflop was a losing play...

Anybody else notice this?

really depends on your opponents.

standart. it calls variance...