BB/100 win rates at nano/micro limits?

Just out of interest, what win rate (BB/100) would be average for a good player, at nano / micro limits? Are we talking 2BB/100 or 10BB/100. I know it’s going to vary depending on the player, etc; but (for example) what would a competent 2/4LH player expect to get if they played 20K hands at 0.2/0.4?

I’m asking this as I’m just trying to get my head around win rates at various limits- and what the “typical” values are.


Many thanks

Ian