Why the log was not the same

We have a problem with the log, just see:

https://www.warcraftlogs.com/reports/1ZWfH7Qnhpt8g6GX#fight=14&type=damage-done that the log

https://www.warcraftlogs.com/rankings/character/21386214/latest#boss=1871 and here my character

I would like to say why on details have 850k dps on the log has 850k but on my chara have 694k ? wtf

Fel Soul damage is excluded from ranks as explained on this page:


thx you for the help