Here is the game: https://online-go.com/game/7488843
At least for me OGS says, that my opponent has rank 25kyu.
But when I look at his profile it says 15kyu in every category.
Is this a bug?
Looks like your opponent was 25k in correspondence at the start of the game, and his correspondence rank his since been changed by a moderator to 15k. His rank in that game reflects his rank when the game started, so is perhaps not a bug per se.
2 Likes
It is my understanding that the rank in the game record is based on the starting rank of both players.
3 Likes
aaah alright I see 
Thank you