The 20-year-old Latvian stunned the tennis world as she reached the showpiece with Simona Halep at Roland Garros and then added another chapter to her remarkable story with a 4-6 6-4 6-3 win on Saturday.
Jelena Ostapenko came to Roland Garros as an unseeded player who had never won a professional title of any kind.
"I'd like to say congratulations to Simona, you had a great week, you played great, I hope you have many more finals and you will win it", added the Latvian, who was a first-round loser in this tournament past year.
And after her astounding comeback, we have delved into Ostapenko's background to paint a picture of the new champion and her achievements.
Ostapenko fired 54 winners and 54 unforced errors compared to Halep's eight and 10 respectively. Ostapenko, only a few days removed from her 20th birthday, upset Halep to take home her own first-ever major. "There are no words".
After saving a break point in the opening game of the second set, Halep took a 3-0 lead as she started to absorb her opponent's powerful shots better and mixed up the pace. But I tried to play aggressive and everything turned my way. "At some point, I was like a spectator on the court. I'm glad it finished my way", said Ostapenko, who finished the tournament with 299 winners.
Halep, the runner-up in 2014 also, hailed Ostapenko. She was hitting very strong.
Ostapenko is making history in more ways than one. But in the deciding moments, I played pretty well.
"She came out like a thunderstorm in that third set (against Bacsinszky)", seven-time champion Chris Evert said. It's wonderful to play here. So I want to have many more if it's possible.
The last woman to gain her first tour title at a Grand Slam tournament was Barbara Jordan of the United States at the 1979 Australian Open. But I think I can walk just in the city and be relaxed. She played really well in the very tough moments for her when I was up a set and 3-0.
"Can she become a serial Grand Slam champion?"
She also joins Kuerten among six unseeded French Open singles winners, with Margaret Scriven - back in 1933 - the only other woman to achieve the feat. But if she keeps playing like this, with no fear, then who's to say she can't win there, too?
Ostapenko chose a tennis career over ballroom dancing, something she still practises four times a week - her favourite dance is the samba.