Rio Olympics: Australia End 48-Year Wait For Freestyle Swimming Gold

Australia's really young gun Kyle Chalmers won the Olympic 100m freestyle gold in Rio on Wednesday to end his country's 48-year drought in swimming's prestige event.

The 18-year-old, who was swimming in his school carnival earlier this year, stormed home to win in a junior world record of 47.58sec, 22-tenths of a second ahead of Belgian silver medallist Pieter Timmers' 47.80 with 2012 gold medallist Nathan Adrian of the United States third in 47.85.

Adrian said he'd never heard of Chalmers until he finished second at the Australian trials.

Chalmers said that suited him just fine.

"I think I definitely flew under the radar," said Chalmers who won't be able to stay out of the spotlight now after an electrifying Olympic debut that saw him duck under the 48-second mark for the first time in Tuesday's heats.

He became the first Australian to win 100m free gold since Mike Wenden in 1968. Since then three Australians had finished second -- Mark Stockwell in 1984, Eamon Sullivan in 2008 and James Magnussen in 2012.

"I actually had no idea about that," said Chalmers, who made the turn in seventh as Italy's Santo Condorelli led ahead of Adrian.

Chalmers made his move along with Timmers, who was fifth at the turn, to seize the win in a mass finish.

Amid the euphoria, he had a thought to spare for teammate Cameron McEvoy, who had established himself as the man to beat with a sizzling 47.04 in April but was relegated to seventh in 48.12sec.

"I don't want to celebrate too much because I know it would have been really hard for him tonight," he said.

As Chalmers put Australia back where they've long felt they belonged on the podium, Dmitriy Balandin was putting the swimming on the map in his home country -- making Kazakhstan's first Olympic medal in the sport a gold in the 200m breaststroke.

Balandin, swimming in lane eight, overhauled early pacesetter Yasuhiro Koseki of Japan at the final turn to win in 2min 07.46sec.

American Josh Prenot, who came into the Games atop the 2016 world rankings, was second in 2:07.53 and Russia's Anton Chupkov was third in 2:07.70.

"I'm very proud to win Kazakhstan's first medal and make history for my country," said the 21-year-old from Almaty.

Spain's Mireia Belmonte-Garcia rallied to win the 200m butterfly, improving on the silver she earned in London.

She caught front-running Australian Madeline Groves at the 150m mark, and finally got past her to touch in first in 2:04.85, just three-hundredths of a second in front.

Reigning world champion Natsumi Hoshi of Japan clocked 2:05.20 to match the bronze medal she claimed in London.

Katie Ledecky anchored the United States to gold in the 4x200m freestyle relay, overtaking Australia's Tamsin Cook to bring her team home in 7:43.03.

Ledecky, who teamed with Allison Schmitt, Leah Smith and Maya DiRado, claimed her third gold of the Games while Australia's Leah Neale, Emma McKeon, Bronte Barratt and Cook earned silver in 7:44.87.

Canada's Katerine Savard, Taylor Ruck, Brittany MacLean and Penny Oleksiak earned bronze in 7:45.39.

Phelps into medley final

Michael Phelps continued his quest for a fourth straight 200m individual medley gold, besting old foe Ryan Lochte in their semi-final to lead the way into Thursday's final, where Brazil's Thiago Pereira and Japan's Kosuke Hagino will be out to crash the US duel.

Phelps, whose emotional 200m butterfly triumph on Tuesday was one of two golds that took his career tally to a remarkable 21, touched in 1min 55.78sec.

Admittedly still tired, Phelps was nonetheless looking forward to a final showdown with world record-holder Lochte, who has taken two silvers and a bronze behind Phelps in the last three Olympics.

"We've been racing for the last 12 years and having one more battle tomorrow will be fun," Phelps said. "We'll have one more time to hop in the pool and duke it out."

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