The doping case of Surinamese sprinter and U20 100m world document holder Issam Asinga got here to a detailed on Thursday in Switzerland. The Courtroom of Arbitration for Sport (CAS) dismissed Asinga’s attraction following an anti-doping rule violation in 2023 for the presence of GW1516 metabolites.
Asinga, 20, will proceed serving his four-year ban, set to finish in August 2027, and could have his U20 100m world document annulled.
The Courtroom of Arbitration for Sport (CAS) has dismissed the attraction of Issamade Asinga towards a 4-year ban for Presence of a Prohibited Substance (GW1516 sulfone, GW1516 sulfoxide), imposed by the World Athletics Disciplinary Tribunal on 6 Could 2024. pic.twitter.com/xP34371qIC
— Athletics Integrity Unit (@aiu_athletics) October 30, 2025
On July 18, 2023, Asinga underwent an out-of-competition doping check that exposed the presence of metabolites of GW1516, which is understood to change how the physique makes use of fats for vitality, selling elevated endurance and fats metabolism.
Ten days later, Asinga broke the U20 100m world document on the South American Athletics Championships in Brazil, operating 9.89 seconds to develop into the primary South American sprinter to dip beneath 9.9 seconds. Lower than two weeks after that race, the Athletics Integrity Unit (AIU) provisionally suspended him.
Issam Asinga smashes Noah Lyles’s American highschool 200m document
On the time, Asinga denied any wrongdoing; his group informed the AIU that the optimistic check was brought on by Gatorade diet merchandise he acquired after being named Gatorade Nationwide Boys Monitor and Discipline Participant of the Yr earlier that month. The 20-year-old mentioned he had ingested Gatorade gummies to assist restoration one week earlier than offering the pattern.
The CAS investigated the gummies however discovered inadequate proof to assist Asinga’s description. “After contemplating the proof, the CAS Panel discovered that the athlete had failed to ascertain that, on the steadiness of possibilities, it was extra doubtless than not that the gummies he ingested earlier than his anti-doping check have been contaminated with GW1516,” the ruling learn.
With Asinga’s U20 world document rescinded, Botswana’s Letsile Tebogo reclaims the document together with his 9.91-second gold-medal efficiency on the 2022 World U20 Championships in Colombia.
