Loïs Boisson isn’t just a name to remember—she’s the headline you didn’t see coming. The 361st-ranked Frenchwoman did the unthinkable by defeating World No. 3 Jessica Pegula in the fourth round of the 2025 French Open. If you’re asking “Who is Loïs Boisson?”—you’re not alone. But after this, you’ll never forget.

Let’s break down how this wild-card warrior swung from underdog to national hero—and what her story means for tennis, sports betting markets like 188bet, and future stars alike.

Loïs Boisson entered Roland-Garros not as a favorite, but as a hopeful. She had never even played a main draw match at the French Open. But under the bright lights of Court Philippe-Chatrier, she turned nerves into fire.

Despite losing the first set 3–6, Boisson roared back to win the next two sets 6–4, 6–4, displaying poise beyond her years. With one stunning forehand down the line, she sealed what is arguably the biggest upset in women’s Grand Slam history since Aniko Kapros knocked out Justine Henin in 2002.

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Here’s some trivia that’ll make your tennis-nerd heart flutter:

  • Boisson is now the lowest-ranked woman (No. 361) to reach the quarterfinals at Roland-Garros in over four decades.
  • She is the only French singles player—man or woman—still standing in the 2025 draw.

Take that, seed charts!

If her forehand didn’t win you over, her post-match interview surely did. Boisson thanked the crowd with genuine awe and then joked:
“I’m really happy on here. I can stay a long time if you like.”
Cue 15,000 fans chanting “Loïs! Loïs!” like it was a rock concert.

And remember that infamous “deodorant” jab from British player Harriet Dart earlier this season? Boisson brushed it off with class—and humor—by mock-requesting a Dove sponsorship on social media. Talk about turning sweat into style.

Before the tournament, Loïs Boisson’s outright odds at 188bet were somewhere between laughable and legendary—some markets had her at 500/1 to reach the quarterfinals.

Post-victory, her odds to win the entire tournament shortened dramatically, causing ripples across live betting boards. The upset has sparked surging interest in underdog betting, especially for homegrown players on familiar clay.

[Tip for punters: Keep an eye on Boisson’s draw. Her next opponent is No. 6 Mirra Andreeva—a prodigy, but beatable if Boisson brings the same composure.]

Boisson’s win is more than a stat—it’s a reminder that:

  • Wildcard doesn’t mean weak card.
  • Rankings don’t measure heart, humor, or home-court hunger.
  • Women’s tennis is full of uncut diamonds—Boisson just got polished on the sport’s biggest clay stage.

For aspiring players, her journey from ACL injury in 2024 to Roland-Garros glory in 2025 is the stuff tennis dreams are made of.

Who is Loïs Boisson?

Loïs Boisson is a 22-year-old French tennis player ranked 361st, who stunned No. 3 Jessica Pegula to reach the French Open quarterfinals in 2025.

What’s Loïs Boisson’s biggest achievement so far?

Reaching the quarterfinals of Roland-Garros 2025 as a wildcard and lowest-ranked player to do so in over 40 years.

Who does Boisson face next?

She’s set to play No. 6 seed Mirra Andreeva in the quarterfinals.

What was the “deodorant” controversy about?

British player Harriet Dart made a rude remark during a match in April. Boisson brushed it off with humor, even joking about getting a Dove sponsorship.

Has Boisson played in the French Open before?

No. 2025 marks her debut in the main draw at Roland-Garros.

How did betting platforms like 188bet react to Boisson’s win?

Her odds dramatically shortened after the upset, creating buzz in live markets and renewed interest in underdog betting.

Loïs Boisson has gone from a question mark to an exclamation point at the 2025 French Open. Whether or not she lifts the trophy, she’s already conquered hearts, headlines, and hard odds.

🎯 Call to Action: Think Boisson can go all the way? Drop your predictions below, share the article, or explore 188bet’s updated French Open markets to join the ride.

By Raj Malhotra

iGaming Analyst & Gambling Compliance Reviewer Raj Malhotra is an India-based iGaming analyst with over 12 years of experience in online casino content, player safety, and regulatory compliance. As the lead reviewer for Casino888Bets.com, Raj personally tests and audits each casino featured on our platform, ensuring honest insights for players. His deep knowledge of the Indian gambling market, combined with technical SEO and real-time betting analysis, allows him to deliver trusted, user-focused recommendations. Raj advocates for responsible gambling and fair play across every review published under his name.

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