Adam Miller Receives Doping Sanction from Arbitrator
Field hockey athlete Adam Miller received a two-year doping sanction after an arbitrator found he committed five Whereabouts Failures within six weeks, failing to submit required location information despite warnings.
An independent arbitrator ruled that Adam Miller, a 34-year-old field hockey athlete from London, United Kingdom, violated anti-doping rules by failing to submit Whereabouts information for approximately six weeks after joining USADA’s Registered Testing Pool on November 12, 2025. The arbitrator determined Miller accrued five Whereabouts Failures, exceeding the threshold of three within 12 months that constitutes a rule violation under the World Anti-Doping Code and related policies. Miller’s sanction began on January 30, 2026, following his provisional suspension, and he was disqualified from all competitive results obtained on and after November 28, 2025, including forfeiture of medals, points, and prizes.
USADA emphasized the importance of accurate Whereabouts information for effective out-of-competition testing, which helps deter and detect doping by enabling no-advance notice sample collection. The agency noted that some prohibited substances have limited detection windows, making unpredictable testing critical. All athletes in USADA’s Registered Testing Pool and Clean Athlete Pool are required to provide up-to-date Whereabouts information under anti-doping rules.
To support athletes and their support teams, USADA offers comprehensive educational resources on its website, including guidance on filing Whereabouts, understanding prohibited substances, and managing necessary medications. The agency also operates a drug reference hotline, Global Drug Reference Online (GlobalDRO.com), conducts educational sessions with National Governing Bodies, and distributes materials such as supplement guides, nutrition guides, and clean sport handbooks.
USADA provides multiple channels for reporting suspected doping violations, including the Play Clean Tip Center, text, email, phone, and mail. As the official anti-doping agency for the U.S. Olympic and Paralympic Movement, USADA is responsible for testing, results management, and preserving the integrity of sport through research and education. For media inquiries, contact Media@USADA.org.