9.
From the stands I could see them running 3-wide through turns 1 and 2 multiple times after restarts. The infield section is plenty wide enough.
Lots of good passing through the field in stages 1 and 3; 2 dragged a bit. As usual, I assume TV missed a lot of that. Stage strategies forced some drivers to work through - Elliott, Bowman, Larson, Bowyer. Great stuff, sorry if it didn't come across on the tube. Good on Chase for rallying, but I think what Bowman did to come on second was even more impressive.