Overwatch 2 mess in stats

Hello,
I create this post to understand how the information is calculated, since OW2 came out, i’m stuck on my ranking and i was looking in my stats why i don’t rank up.
And finally i see that it’s a mess without name the way the average 10MIN is calculated

https://cdn.discordapp.com/attachments/313346649088983040/1061833374563565668/Overwatch_2_Screenshot_2023.01.09_-_02.56.27.11.png

https://cdn.discordapp.com/attachments/313346649088983040/1061833374962032721/Overwatch_2_Screenshot_2023.01.09_-_02.56.29.90.png

According to this part which lasted only a short time the problem is really visible.
It lasted 6:16 for a total of 8655 damage.
I do not understand how an average /10MIN could be lower than my damage in a game at 6:16.
Either, if i do the calculation by hand (8655/376)*600 = 13811 (376 sec in 6:16 and 600 sec in 10:00)
No matter what stat i look at the averages are completely off the mark.