Need advice cylinder scratches

That small.... run it and don't think about it anymore....seriously. Any engine is going to get tiny scores and scratches in the cylinders in the normal course of operation; I have never pulled an engine apart without finding such marks in the cylinders.

I would not worry 1 microsecond over this and would take it racing in a heartbeat and IMHO any work on this would be a total waste of $$ and effort. I may have deburred the ring ends once in my life LOL.