Here are a few pictures of the progression of this fairway:
Before Revolver Spray
1 week after Revolver Spray
Notice the cool-season yellowing off
3 weeks post spray. The dark strips are the Zoysia grass
In this picture you can see the spread of the Zoysia grass between the 2 strips. The yellowing grass will slowly disappear while the dark green Zoysia will continue to spread in.