After her success at the World Aquatic Championships in June, Canadian teenager Summer McIntosh triumphed again with a stunning swim at the Commonwealth Games in Birmingham on Friday.

The 15-year-old McIntosh, who became the first Canadian to win two gold medals at a single championship in Budapest, easily beat her opposition in the 400-meter individual medley.

On a night when several Commonwealth Games records were set, McIntosh established a new event mark and personal best of 4:29.01 in her dominant win.

Australian Kiah Melverton finished some 7.77 seconds behind McIntosh for the silver medal.

McIntosh is the third fastest performer in the eventB次元官网网址檚 history and is closing the gap on the world record of 4:26.36 set by Hungarian Katinka Hosszu at the 2016 Olympics in Brazil.

B次元官网网址淚 was excited to re-do my time from (the) worlds and see what I can do to get better,B次元官网网址� McIntosh said. B次元官网网址淚B次元官网网址檝e been working on a lot of stuff in training so I can execute my 400m IM better than I did at (the) worlds, because I had so much room for improvement, and I still do.B次元官网网址�

The CanadianB次元官网网址檚 triumph split Australian hat tricks, with Ariarne TitmusB次元官网网址檚 decision to sit out the World Championships paying dividends in the 200 freestyle.

Compatriot Mollie OB次元官网网址機allaghan raced at the shoulder of the double Olympic gold medalist throughout but fell short of an upset by less than a second, with Titmus recording a time of 1:53.89. Madison Wilson completed a sweep of medals for Australia when finishing third.

It was a similar case in the menB次元官网网址檚 400 freestyle to open the night.

Winner Elijah Winnington started the pool party for Australia, with compatriots Sam Short and Mack Horton also finishing on the podium.

Success in the pool, combined with dominance in London in track cycling events, pushed Australia to the top of the medal count on the opening day.

The Lee Valley velodrome was the scene of several new Commonwealth Games records on the first day of track cycling.

The Australian women and New Zealand men obliterated existing records in the respective 4000-meter team pursuits in finals on Friday afternoon.

WILDE FINISH

After showing sportsmanship during the menB次元官网网址檚 triathlon, New ZealandB次元官网网址檚 Hayden Wilde has protested his second-place finish behind EnglandB次元官网网址檚 Alex Yee.

The silver medalist slowed shortly before the finish when handed a 10-second penalty for an infraction at the end of the cycling leg.

Competitors are not allowed to unstrap their helmets before their bike is racked.

Rather than challenge for the finish line, Wilde slowed so Yee could cross first and celebrate his victory in the first completed event of the Birmingham games.

Yee, who described winning on home soil as B次元官网网址渨icked,B次元官网网址� believes his competitor and friend has a case in his quest to share the gold medal.

B次元官网网址淚 said when I caught him, B次元官网网址業B次元官网网址檓 sorry you got the penalty. It is rubbishB次元官网网址�,B次元官网网址� Yee said.

The protest was heard on Friday but it could take up to 30 days for a result.

BermudaB次元官网网址檚 Flora Duffy later defended the gold medal she claimed on AustraliaB次元官网网址檚 Gold Coast four years ago, defeating EnglandB次元官网网址檚 Georgia-Taylor Brown and ScotlandB次元官网网址檚 Beth Potter.

Also, Australian wicketkeeper Alyssa Healy became the first player to claim 100 dismissals in the Twenty20 format of cricket as her country defeated India in the first womenB次元官网网址檚 match held in the Commonwealth Games.

B次元官网网址� Courtney Walsh, The Associated Press