The doping case of Surinamese sprinter and U20 100m world document holder Issam Asinga got here to an in depth on Thursday in Switzerland. The Courtroom of Arbitration for Sport (CAS) dismissed Asinga’s enchantment 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 enchantment of Issamade Asinga in opposition to a 4-year ban for Presence of a Prohibited Substance (GW1516 sulfone, GW1516 sulfoxide), imposed by the World Athletics Disciplinary Tribunal on 6 Might 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 thought 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 grow to be the primary South American sprinter to dip underneath 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 staff advised the AIU that the constructive check was brought on by Gatorade vitamin merchandise he obtained after being named Gatorade Nationwide Boys Observe and Discipline Participant of the Yr earlier that month. The 20-year-old stated 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 help Asinga’s description. “After contemplating the proof, the CAS Panel discovered that the athlete had failed to determine that, on the steadiness of possibilities, it was extra seemingly 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With Asinga’s U20 World Report Rescinded, Botswana’s Letsile Tebogo reclaims the document together with his 9.91-second gold-medal efficiency on the 2022 World U20 Championships in Colombia.
