With summer's main events about to begin, no one on the WTA tour is hotter than Danielle Collins. 

Two weeks after winning her maiden title in Palermo, Collins claimed the Silicon Valley Classic crown in San Jose, California by defeating Daria Kasatkina 6-3 6-7 (10-12) 6-1 on Sunday.

It was the 10th successive match victory for the American, who is ranked 36th in the world and poised to move up as the hard-court season intensifies with WTA 1000 events at Montreal and Cincinnati ahead of the U.S. Open. 

While it appeared for a while that Collins would cruise to another easy win, Kasatkina made it a fight in the 73-minute second set. 

The Russian had prevailed in the two previous meetings between the players, and she saved two championship points down 4-5 in the second and three more in winning the tiebreak. 

That marked only the second set Collins has dropped during her 10-match run, the other coming against Sloane Stephens in the second round earlier this week. 

Kasatkina's momentum was short-lived, however, as Collins broke her serve early in the third and never looked back.

Before her clay-court title run at Palermo, Collins had been 0-6 in semi-finals in her career.