The Aussie women's 4x100m medley relay gold capped off a remarkable Olympic Games haul in the pool, but some US viewers were left fuming over the final leg of the race.
Cate Campbell finished the 4x100m medley and clinched Australia's most successful swimming campaign in Olympic Games history, securing our ninth gold medal in the pool in Tokyo.
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Campbell produced an incredible anchor swim as Kaylee McKeown, Chelsea Hodges, Emma McKeon finished with an Olympic Record of 3:51.73 seconds, 0.13 seconds ahead of the United States.
Campbell admitted she waited to celebrate after coming in first for gold after a close changeover when McKeon touched the wall.
The changeover was deemed near perfect from the famed anchor-leg swimmer and it helped Campbell secure the nail-biting finish.
But, US fans were left seething over the changeover.
Many accused Campbell of leaving the block too early, despite the changeover deemed perfectly legal.
One Twitter user wrote: "Australia straight up cheated," with the Tweet now deleted.
While Australians hit back at the claim and pointed to the rules.
Campbell's lightning reaction off the blocks was 0.04 seconds, ahead of Abbey Weitzeil’s 0.36.
The Americans had the slowest reaction times off the blocks across the board, accumulating 1.09 seconds.
Regardless, the gold completed a golden Olympics for the women in the pool and a history-making Games for McKeon.
Emma McKeon creates Olympics history
McKeon became the first female swimmer and second in any sport in history to win seven medals at one Olympic Games.
The Aussie star came into the final day of swimming action in Tokyo with five medals for the meet, and won two more on Sunday.
McKeon won the 50m freestyle in an Olympic record time on Sunday, before helping the 4x100m medley relay women win gold in another Olympic record.
McKeon also becomes the first Australian in history to win seven medals at one Olympic Games.
She won four gold medals in Tokyo (100m freestyle, 4x100m freestyle relay, 50m freestyle and 4x100m medley relay), as well as three bronze (4x100m medley relay, 100m butterfly and 4x100m mixed medley relay).
She won four medals at the Rio Olympics in 2016 - gold in the 4x100m freestyle relay, silver in the 4x200m freestyle relay and 4x100m medley relay, as well as bronze in the 200m freestyle.
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