'Heartbreak' for Horton as finals spot goes begging

Mack Horton says it's "heartbreaking" to realise helium apt won't beryllium a portion of the Australian squad that lines up successful the last of the 4x200m freestyle relay.

Australia qualified 2nd fastest successful a clip of 7:05.00, down lone Great Britain (7:03.25), but Horton's clip of 1:47.51 was the slowest of the 4 swimmers.

Alexander Graham (1:45.72), Elijah Winnington (1:46.19) and Zac Incerti (1:45.58) were each quicker than Horton.

With Tommy Neill and Kyle Chalmers apt to travel into the squad for the final, Horton and Winnington are the evident candidates to driblet out.

"Not arsenic bully arsenic I was hoping," Horton said aft the race.

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"It was astir apt not bully capable to get done to the last squad which is heartbreaking, but we got the squad done and that's each that matters.

"It was a privilege to beryllium portion of it."

Mack Horton expects to miss the last of the 4x200m freestyle relay. (Getty)

Horton was the defending 400m freestyle champion but missed enactment astatine the Australian trials, aft finishing 3rd down Winnington and Jack McLoughlin. McLoughlin claimed a metallic medal successful the lawsuit earlier successful the week, portion Horton was picked for the squad arsenic a relay swimmer.

Elsewhere, defending champion Kyle Chalmers has acceptable the third-fastest clip successful the heats of the 100m freestyle.

Having shocked the satellite to triumph the rubric arsenic an 18-year-old successful Rio, Chalmers is looking to go the archetypal Australian antheral to support the 100m title.

He stopped the clocks successful 47.77 seconds to triumph his vigor comfortably.

Kyle Chalmers successful enactment successful the heats of the 100m freestyle astatine the Tokyo Olympics. (Getty)

Italian Thomas Ceccon was fastest qualifier successful 47.71, up of Caeleb Dressel successful 47.73.

Australia's Cameron McEvoy clocked 48.72 and missed the semi finals, mounting the 24th fastest time.

There were somewhat farcical scenes for the women's 200m butterfly, with a precocious withdrawal leaving lone 16 competitors to enactment up successful heats.

With each 16 swimmers qualifying for the semi finals, the lone request was to debar being disqualified.

Brianna Throssell successful enactment successful the women's 200m butterfly astatine the Tokyo Olympics. (Getty)

The times were somewhat academic, nevertheless Australia's Brianna Throssell was ninth fastest wide successful 2:09.34.

There was bully quality for Australia successful the men's 200m breaststroke, with some Zac Stubblety-Cook and Matt Wilson qualifying for the semi finals.

Stubblety-Cook dead-heated for archetypal successful his heat, and the fastest clip overall, with a clip of 2:07.37.

Wilson is ninth fastest wide with a clip of 2:09.29.

And Jack McLoughlin has qualified sixth fastest for the last of the men's 800m freestyle, with a clip of 7:46.94.

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