Ariarne Titmus : 53zaqpwwusvoxm . Ariarne titmus (born 7 september 2000) is an australian swimmer. Australia's ariarne titmus clocks oceania record to claim 400m freestyle crown from katie ledecky. Australia's ariarne titmus lit up the pool with a stunning victory over katie ledecky at the tokyo games on monday, but when it comes to . Click here to read more. Australia's ariarne titmus wins the olympic gold medal in the women's 400m free.@katieledecky gets the silver, earning her first olympic . Ariarne titmus' parents steve and robyn with daughter mia watching her win the 400m freestyle on monday. Australia's ariarne titmus clocks oceania record to claim 400m freestyle crown from katie ledecky. Ariarne titmus of australia became the first woman to beat katie ledecky in an individual event at the olympics. Titmus beats ledecky for olympic gold. The race that stopped two nations delivered as ariarne titmus chased down katie ledecky to win ...