Anyone who has properly marked their ball on a green more than a dozen times knows she committed a penalty. On the non-zoomed-in real-time replay, it was subtle if you didn’t look for it, but glaring if you did. I also think she did it intentionally. On the zoomed-in replay, there is an imperfection near her original line that she moved away from. She is also has played tournament golf for all her life, and has properly marked her ball at least 50,000 times. Anyways, plenty of golfers have won big-time tournaments where their every interaction with the golf ball was televised to the whole world in HD. Tiger, Rory, Jordan, Jason, … Yes, it is possible to play tournament golf and not incur a penalty. Yes, you can.