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Ariarne Titmus has just performed one of the biggest upsets in the Tokyo Olympic Games.
The Aussie swimmer won gold in the 400m women's freestyle event and upstaged legendary American athlete Katie Ledecky.
It was the first time Ledecky has been bested in an Olympic final and Ariarne pulled it off in stunning style during her first ever Olympics.
Titmus completed the race with a new personal best and Australian record of 3:56.69. This was more than half a second in front of Ledecky.
While there will have been plenty of Aussies celebrating another medal on the country's tally, no one was most visibly overjoyed than her coach.
Dean Boxall was seen standing alone and absolutely cheering with delight.
It wasn't long before footage of him holding onto the railing of a balcony with sheer happiness started spreading on social media.
Ariarne was beautifully humble about the win and admitted it will take a bit of time for what's just happened to settle in.
"I can't believe it. I'm trying to contain my emotions - I've got the 200 tonight!" Titmus told Channel 7.
"But oh my gosh I can't believe it. This past year, I don't know whether it's gone fast or slow. More than anything to get here was a relief, but to come here and do the job - I'm over the moon.
"I thanked [Ledecky]. I wouldn't be here without her. She set this incredible standard.
"All credit to her for the incredible swimmer she is. It's kind of exciting we have this battle going, it's fun to race. That's the best part of it.
"I tried to stay as composed as I could, tried to stick to my race plan. I can't believe I pulled it off."
Ledecky added: "I fought tooth and nail and gave it my all. I can't be disappointed. That's an awesome time for me. We're really friendly. [Titmus] really pushed me and I think it's really great for the sport."
Her family was also jumping for joy at watching their darling athlete compete at the top of her game in front of the world.
"Mate I can't believe it! I've lost my voice. I cannot believe it," father Steve told 7News.
"Wow! Just quite extraordinary. She's done it! She's actually done it! That last 100, she's just gritty, determined, unbelievable."
Featured Image Credit: PA
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