I have a big surprise when i search the thime played on CS 1.6 server.
I don't find my nickname Maty but instead i found nick maty white same thime and points. Same thing on another server where i playe from about 500 hours.
Every time when i enter on the server and check gametracker found nick Maty online with 1 min of play. If i get out from server in the Player stats may nickname disappear.
(

You are almost certainly making incorrect assumptions about how the tracking works, and its limitations.
If the system were not working to specification, we would have 200000 reports, instead of one.

However, we can do nothing to investigate/explain unless we know
- server(s) you played on
- actual in-game player name(s) that you use

In 99% of games i play as Maty, with upper M.
Here on star.darkcs.ro on search player can be find user "maty" and i linked with my profile. "Maty" can't be found.
My problem is becouse on my request to be admin on that server must prove minimum hours of play.
So my question is : "maty" and "Maty" are the same player?

Recorded player names are not case sensitive.

If the first recorded player name 'maty' then that is the stored name.
A different player using 'Maty' will simply add scores and time to the name 'maty', not create a new entry for 'Maty'.

'bob' 'Bob' 'boB' 'BoB' 'BOB' are all the same.