Chipping from Thick Rough

Chipping is harder out of the rough. One of the keys to hitting this shot is to make sure you accelerate your clubhead through the grass. I think most players who decelerate their clubhead are not so sure how hard they should hit the ball. That makes them to decelerate. So take 2 or 3 practice swing before chipping and listen to the sound that the practice swing makes as it goes through the rough. Once you think you get the feeling, try to recreate that sound when you hit the shots.

 

From Deep Grass, Use Ernie's Technique

If your ball ended up in deep grass near the green, you might want to hit it like a bunker shot depending on the shot. Ernie Els said he opens the clubface, grips down on couple of inches and hits behind the ball like a bunker shot from deep rough. Unless the ball is touching the ground, this will be a good technique to use. You might need to practice before using it on the course, but when you are in a really deep rough and not sure you can make good contact with the ball, go ahead and hit it like a bunker shot. Michelle Wie also said she uses this technique. This will help you get out of the deep rough.

 

Reference: http://www.golfsamurai.net/short-game/chipping-from-rough.htm