The livewire Latvian has electrified Roland Garros this year with a refreshingly simple gameplan.
Ostapenko came back from 0-3 down in the second set to take control with some fearless groundstrokes during the two-hour contest. "I love you guys", Ostapenko, who was playing her eighth Grand Slam, told the spectators after the final.
- Following her title win, Ostapenko will move up to a career-high world number 12 from 47 in the WTA rankings.
With the rankings cut-off several weeks ago, Ostapenko is now still one out, although a wild card will surely be made available for her if she wants it.
"I knew that Kuerten also won his first title here also in 1997 (the year she was born)". If I have a chance to go for a shot, I'm trying, and it's quite helpful.
It was a similar tale in the deciding set as Halep again saved break points in the opening game and raced to a 3-1 lead but again Ostapenko blasted her way out of trouble and didn't show any signs of nerves closing the match out. Ostapenko, 20, won the important points, including late in the third set.
Spanish player Anabel Medina Garrigues has also been helping with coaching as she recovers from an injury. She had previously won her quarter-final after trailing Elina Svitolina 3-6 1-5 and Halep was the latest victim of her determination.
And what of the beaten finalist, the woman who was many people's tip to win the title here after a superb clay season: semis in Stuttgart, title in Madrid and the final in Rome. "It was a little bit of like emotional moment, but that's it". I think I have the game.
"Now I want to congratulate Jelena". But Halep is mainly a defensive player, and does a great job of it, but she didn't quite have the luxury of being unscarred by failure.
"There were a couple of games when everything went my way and I was ready to fight for every point".
She wanted to live the experience of playing for the first time a such important match. But Ostapenko rallied, as she would against two much more experienced players - 2011 U.S. Open champion Sam Stosur in the fourth round and former world No. 1 Caroline Wozniacki in the quarterfinals.
So what now for Halep? "We will see what is gonna be". Perhaps she will feel more at home on the hard courts later in the summer.
"I don't believe I did something wrong, too wrong today".
"I still have to improve some things and to get better as player". And also I think my character is like that. "I didn't really understand how to play on grass", Ostapenko said.
But it was not until the closing moments of her win over third seed Halep, the 2014 runner-up, that the Latvian contemplated winning the title. She will nearly certainly be a seeded player from this point forward, and she also no longer has a zero in the championship category. "I was close again but I lost it".
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