Weird rating calculation

I played a blitz game against the user Yeknafar today. Here is the game:


The game log says that Yeknafar, who was rated 2463 before the game, lost 8 rating points after the game.
Right after our game, Yeknafar goes on to play another blitz game, which may be viewed here:


His rating in this game is 2460. Last time I checked 2463 - 8 = 2455. Where did the 5 rating points go?

Possibly these 5 rating points were added,if the user has been given rating refund due to losing to a cheater.

Could be, but it sounds highly unlikely as the next game was started without any wait after our game and the rating was already 2460.

Why in the world did you include the games?

I included the links as proofs to the mentioned rating changes. The games are included automatically by the server.
Not sure why you're concentrating on that non-issue.