Having been advised as a child to begin swimming to combat asthma[citation needed], the Brisbane schoolgirl broke into the Australian team for the 1991 World Championships in Perth, Western Australia, winning a silver medal in the medley relay.[citation needed] The following year, Riley won a bronze medal in the 100-metre breaststroke at the 1992 Barcelona Olympics, as well as competing in the 200-metre event.
Riley continued to sweep all before her in 1995, but arrived for the 1996 Summer Olympics under the cloud of a doping controversy. Her coach, Scott Volkers, had given her a pill for headaches which contained the banned substance dextropropoxyphene.[4] Riley tested positive at the world short course championships in Rio de Janeiro,[5][6] and was only exonerated after her coach Volkers admitted to giving her a headache tablet which contained the banned substance.[citation needed] Riley told a news conference the drug was contained in headache medication she took by accident.[7] Under the pressure of the controversy, Riley performed well outside her personal best times. She collected a bronze in the 100m breaststroke. She also collected a silver medal in the 4x100-metre relay with Nicole Stevenson, Susie O'Neill and Sarah Ryan.
Riley never stood on the podium again as an individual at the world level, but maintained her position in the Australian squad. Many anticipated her to return to her peak at the 2000 Summer Olympics in Sydney, but a kidney infection disrupted her training.[citation needed] She retired shortly after being Australia's most successful female breaststroke swimmer in the 1990s.
Personal life
At one stage during the mid-1990s, Riley was engaged to Norwegian Olympic champion speedskater Johann Olav Koss. She was also engaged at one time to rugby league player Julian O'Neill.[3]
The major arterial Samantha Riley Drive in Kellyville is named after her. The Australian Olympic Committee recognised her in their list of Australian Indigenous Olympians.[8]
In March 2023, it was reported that Riley had split from her husband of 22 years, former Ironman champion Tim Fydler. They have three children.[3]