Regarding the last round - let the result remain as it is. It's a Swiss system, and it wouldn't be fair if 0.5 points suddenly appeared out of nowhere.

First of all, congratulations on the victory :)
Secondly, you don't have anything "out of thin air."
LeonidosIk didn't play his game. There's practically no time left, as there are no postponed games in the penultimate round.
You will receive a technical win for the game against him.
In total, you will have 4.5 points in the 6th round draw.
Three "battle" wins, one technical win, and a "battle" draw with Ikhtiandr.
In total, 4.5 points

R55Max has 5 points. Four "battle" wins and one technical win.

And all participants will be drawn for the 6th round based on their ACTUAL results.