Robson admits that she had to make improvements going into the match coming off the back of the last time she faced the Spaniard.
"I love these courts and I think they suit me quite well," Robson told Sky Sports News. "I love New York and I love the atmosphere. There were so many British people on court today and that was amazing.
"I knew I had to pace myself in the rallies - stay aggressive but only go for it when I had the opportunity.
"Previously when I played her that is what I did quite badly I would say, so today I knew that I had to keep doing that and I managed to throughout the match."