She also won the Shenzhen Open and Canadian Open titles this season and made it to the final round at the Australian Open, Italian Open and Cincinnati Masters.
Romania's Simona Halep said she was enjoying her position on top of the world standings after she secured the year-end WTA number one spot for the second consecutive year.
She also gave a short update on her fitness following the back trouble that forced her out of competition in Beijing, saying: "I'm doing physio to try to make [my back] stronger, but I haven't practiced 100 per cent yet".
"So I don't know now but, for sure, I will take a decision for my health first".
In such circumstances some players might have ended their season early, but Halep said she had been determined to push herself to the limit.
Kershaw dominates as Dodgers move one win away from Series
Pitching in 82-degree sunshine, Kershaw was well-rested and masterful in allowing one run and three hits over seven. Miley is scheduled to start Game 6 on Friday. "We all know Kike is very emotional", Roberts said before Game 4.
Halep has played 15 tournaments so far in 2018.
With momentum on her side, Garcia broke Pliskova's serve twice to claim her first WTA title since her back-to-back triumphs in Wuhan and Beijing previous year.
Apart from a four-week spell at the start of this year when she was briefly overhauled by Caroline Wozniacki, Halep has kept hold of the world No 1 ranking ever since she went top early in October last year.
"It's really hard and I feel it every year, and I feel it more and more, to be honest".
"So it's pretty stressful but somehow it's normal because injuries are pretty normal when you play at the highest level".