Note: Single-source report; awaiting corroboration.
In the Men's 400 metres semifinal Heat 1 at the 2026 World Athletics in Budapest, Busang Collen Kebinatshipi of Botswana finished first with a time of 44.23 seconds. He was followed by Chris Bailey (USA) with 44.28 seconds and Rai Benjamin (USA), also with 44.28 seconds.
Jacory Patterson (USA) won the Men's 400 metres semifinal Heat 2, recording 44.73 seconds. Matthew Hudson-Smith (Great Britain) was second with 44.79 seconds, and Lee Eppie (Botswana) third in 44.85 seconds.
In the Women's 400 metres semifinal Heat 1, Marileidy Paulino (Dominican Republic) led with 49.58 seconds, followed by Salwa Eid Naser (Bahrain) at 49.67 seconds, and Nickisha Pryce (Jamaica) at 49.72 seconds.
The Mixed 4x100 metres relay final saw the United States (Ronnie Baker, Anavia Battle, Courtney Lindsey, and Kayla White) win with a time of 39.64 seconds. Jamaica finished second in 39.72 seconds, and Great Britain & Northern Ireland placed third in 40.26 seconds.