Ariarne Titmus' parents couldn't be prouder after the 20-year-old won her first Olympic gold medal on Monday afternoon.
The Tasmanian barely brushed past American swimming star and rival Katie Ledecky for first in the women's 400m freestyle.
Ledecky set the pace early to jump out to a commanding lead. But her Aussie counterpart didn't let up, closing the gap in second place throughout the race.
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It was tight, but Titmus edged it out to win with a time of 3:56.69 - 0.67 seconds ahead of Ledecky.
"I can't believe it - I can't contain my emotions," the Launceston-born Queensland resident told Channel 7.
"This past year, I can't tell whether it's gone fast or slow. More than anything, to get here was a relief and to come here and do the job: I'm over the moon."
The celebration of Titmus' coach Dean Boxall has also gone viral, as footage of him was captured displaying incredible passion for his swimmer's victory.
"Dean means everything to me," Titmus said.
"Coming into this race, we knew exactly what we had to do. We didn't really discuss what I wanted to do in the pool, it was more of a 'have fun' moment."
Titmus' mother and father Robyn and Steve have also been captured displaying similar levels of excitement.
"I'm so proud of her," Robyn said.
"That last 100 metres, god she can race. She dug in, she never gave up.
"She so deserves this, her and Dean. I'm so delighted for them."
After the race, Titmus and Ledecky shared a congratulatory moment.
"I thanked her [Ledecky], I wouldn't be here without her," Titmus said.
"She set this incredible standard and all credit to her for the swimmer she is.
"I've just been trying to chase her so it's really exciting now that we have this battle going. It's really fun to race and that's the best part about it.
"In the race I tried to stay as composed as I could, to stick to my race planm and I can't believe I actually pulled it off."
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Titmus was presented with her medal by Australian Olympic Committee chairperson and International Olympic Committee vice-president John Coates.
"It was hard to contain it because I could see Dean on the other side bawling his eyes out and you don't really see that often so that made me want to tear up," she said.
But the Olympic gold medallist had little time to rest on her laurels, with Titmus' focus now on the 200m as well as the 4x200m and 800m races.
"I've got a busy night tonight with the 200 so I can enjoy all of this at the end," she said.
"My mum is the most competitive person I know so I think I definitely get my competitiveness from her but I knew that Dad would probably be crying because he's a bit of a softie."
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