Darya Klishina is "thankful" her appeals to compete at Rio 2016 are behind her after the Court of Arbitration for Sport ruled she could enter the long jump competition.
Klishina was Russia's lone representative in the track and field at the Games after a blanket ban was imposed on her compatriots following revelations of state-sponsored performance-enhancing drug use, documented in a report commissioned by the World Anti-Doping Agency and delivered by Professor Richard McLaren.
Having spent three years based in the United States, Klishina was initially deemed to be untainted by the Russian system, although her eligibility was revoked by the IAAF on the second day of athletics competition.
Klishina immediately appealed to CAS and the 25-year-old was successful, meaning she will get the chance to compete for gold in the Olympic Stadium.
"Today [Monday] the parties were informed that the application was upheld and that the athlete remained eligible to compete in the Olympic Games," a CAS statement read.
"The athlete complied with the relevant criteria because of her permanent residence outside Russia, still applied despite the additional information provided by Professor McLaren.
"Relevantly, the athlete established that she was subject to fully compliant drug-testing in and out of competition outside of Russia for the 'relevant period'."
Klishina expressed her relief in a post on Facebook, and said she was relieved to only have the long jump competition to focus on.
She posted: "Yesterday I appealed the decision by the IAAF to ban me from the Rio Olympic Games and other IAAF international competitions to the Court of Arbitration for Sport (Ad Hoc division in Rio).
"The Court of Arbitration for Sport set aside the IAAF decision and confirmed that I am a clean athlete who remains eligible to compete under IAAF rules in the Olympic Games and other international competitions.
"The IAAF decision of 9 July now remains in effect which found that I was eligible because I was available to reliable drug testing around the world almost 90 per cent of the time.
"With the appeal now behind me, I can thankfully focus my time and attention on competing tomorrow night and enjoying my Olympic experience, which I have dreamed of since I first began long jumping as a young girl."