Iga Swiatek won her eighth title of the season with victory over Donna Vekic at the San Diego Open.

The world number one was left tearful after suffering a first defeat in 11 finals to Barbora Krejcikova in Ostrava last week but came out on top again on the American west coast.

Qualifier Vekic had fought back from 4-2 down in the third set against Danielle Collins earlier on Sunday in a semi-final delayed by rain and pushed Swiatek before the Pole surged through the decider to win 6-3 3-6 6-0.

The victory was Swiatekā€™s 64th of the year, the most for any female player since Serena Williams won 78 matches in 2013.

Swiatek said: ā€œIā€™m just really happy. Coming in here, I wasnā€™t feeling completely sure that Iā€™m going to be able to perform my best after playing such an intense tournament in Ostrava. Iā€™m pretty happy that Iā€™m still able to work through all these things and put my best tennis out there.

ā€œI think this is going to be the season Iā€™m going to be thinking about for the rest of my life but, on the other hand, I would love to have seasons like that in the future so I guess the best way to do that is not really be focusing on what happened but focusing on whatā€™s next. I still know I have many things to improve.ā€

Swiatek is not playing in this weekā€™s WTA 1000 tournament in Guadalajara and will finish her season at the WTA Finals in Forth Worth, Texas beginning on October 31.