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Doping Suspensions, Disqualifications, and Public Warnings

The following individuals have been disciplined by USATF and/or are currently serving doping suspensions. Those individuals serving suspensions are ineligible to participate in the activities of USATF and/or in Athletics competitions, subject to reinstatement requirements.

Although their suspension periods may have ended, athletes are not eligible to compete until they have completed all requirements and conditions for reinstatement. Athletes noted as retired must be in the USADA Out-Of-Competition (OOC) drug testing pool for a minimum of 12 months before resuming competition, and must also undergo reinstatement testing.

Name Substance Type Substance Public Warning Suspension Period/Ban Event Event Date Place Disqualification
NameSemaj Street Substance TypeOther SubstanceCaroxy-THC Public WarningOctober 24, 2025 Suspension Period/BanAugust 11, 2025 - November 11, 2025 Event2025 USATF Masters Outdoor Championships Event DateJuly 25, 2025 Place DisqualificationDisqualification of any competitive results obtained on July 17, 2025, including forfeiture of any medals, points, and prizes
NameManteo Mitchell Substance TypeSteroids SubstanceOxymetholone and methasterone Public WarningSeptember 26, 2025 Suspension Period/BanMarch 03, 2025 - March 03, 2027 EventOut-of-competition Event DateFebruary 02, 2025 Place DisqualificationCompetitive results obtained on and subsequent to February 2, 2025
NameRaven Saunders Substance TypeOther SubstanceThree Whereabouts Failures in a 12-month period Public WarningSeptember 10, 2025 Suspension Period/BanDecember 26, 2024 - June 26, 2027 Event Event Date Place DisqualificationCompetitive results obtained on and subsequent to December 26, 2024
NameMichael Hooker Substance TypeSteroids SubstanceMesterolone Metabolite Public WarningSeptember 05, 2025 Suspension Period/BanAugust 22, 2025 - August 22, 2028 Event2025 USA Track & Field Masters Outdoor Championships Event DateJuly 17, 2025 Place DisqualificationCompetitive results obtained on and subsequent to July 17, 2025
NameShadrack Biwott Substance TypeSteroids Substanceerythropoietin Public WarningAugust 27, 2025 Suspension Period/BanFebruary 23, 2024 - February 23, 2028 EventOut-of-competition Event Date Place DisqualificationCompetitive results obtained on and subsequent to January 25, 2024
NameJames Carter Jr Substance TypeCannabinoids SubstanceCaroxy-THC Public WarningJune 05, 2025 Suspension Period/BanMarch 12, 2025 - April 12, 2025 Event2025 USA Track & Field Indoor Championship Event DateFebruary 22, 2025 Place DisqualificationCompetitive results obtained on and subsequent to February 22, 2025
NameSeth Vowell Substance TypeOther Substanceuse or attempted use of testosterone Public WarningMarch 19, 2025 Suspension Period/BanMarch 19, 2025 - March 19, 2027 Event2023 USATF National Junior Olympic Cross-Country Championships Event DateDecember 10, 2023 Place DisqualificationCompetitive results obtained on and subsequent to December 10, 2023
NameDavid Prince Substance TypeSelective Androgen Receptive Modulators SubstanceOstarine Public WarningMarch 14, 2025 Suspension Period/BanJuly 26, 2024 - July 26, 2031 EventU.S. Paralympic Team Trials Event DateJuly 19, 2024 Place DisqualificationCompetitive results obtained on and subsequent to July 19, 2024
NameLoretta Turner Substance TypeSteroids SubstanceOxandrolone and its metabolites Public WarningOctober 01, 2024 Suspension Period/BanAugust 09, 2024 - August 09, 2028 Event2024 USATF Masters Outdoor Championships Event DateJuly 19, 2024 Place DisqualificationCompetitive results obtained on and subsequent to 7/19/24
NameCary Cooper Substance TypeRefusal to Test SubstanceRefused to provide a sample Public WarningAugust 12, 2024 Suspension Period/BanJuly 31, 2024 - July 31, 2026 Event2024 USATF Masters Outdoor Championships Event DateJuly 20, 2024 Place DisqualificationCompetitive results obtained on and subsequent to 7/20/24
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