Simona Halep did beat Heather Watson 4-6, 6-4, 6-2. Heather Watson had a good start to the match winning the first set and at one stage in the second when the set was 4 games each she was 40-0 but then it all went wrong.
In the first set in particular, there was a new Heather Watson, much more agressive and dominant than in the past. This is what she is aiming for and why she very recently changed her coach. Simona Halep has had a string of successes recently and is likely to go quite far in the Open.