ATHLOS staged its first meeting outside the United States on Friday evening, bringing seven events and a women-only start list to StoneX Stadium in north London. Marileidy Paulino, Keely Hodgkinson, Sha'Carri Richardson and Gabby Thomas all won, and the 400m produced the performance of the night.

Henriette Jaeger attacked from the gun and went through 200m in 23.69, with Paulino sixth at that point in 24.18. The Dominican Olympic champion began closing on the final bend and caught the Norwegian inside the last few metres to win in a meeting record of 48.73. Jaeger's 48.78 was a Norwegian record and made her the fastest European woman over the distance since Marie-Jose Perec won the 1996 Olympic title. Nickisha Pryce took third in 49.39 ahead of Lieke Klaver in 49.66. It was the fifteenth sub-49 race of Paulino's career, equalling the all-time record, and eight of those have come this season.

Hodgkinson controlled the 800m and improved the meeting record to 1:56.40. Raevyn Rogers took the field through the opening lap in 57.53 with Hodgkinson close behind in 57.57 before the British Olympic champion pulled clear over the back straight. Valentina Rosamilia of Switzerland was more than two seconds adrift in 1:58.75, with France's Renelle Lamote third in 2:00.15. The win was worth the meeting's $65,000 first prize and a Tiffany and Co. crown.

Richardson won the 100m on the strength of her second half, pulling away to a meeting record of 10.80. New Zealand's Zoe Hobbs took second in 11.19 from Anavia Battle in 11.25, with Imani Lansiquot and Daryll Neita fourth and fifth in 11.35 and 11.36. Thomas completed the sprint programme in the 200m, reaching halfway in 11.26 and covering the closing 100m in 10.87 to win in 22.13. Kayla White was second in 22.40, narrowly ahead of Battle's 22.43 on the Californian's second race of the evening.

The mile brought the closest finish of the night. Georgia Hunter Bell led into the final quarter before Poland's Klaudia Kazimierska found a gap on the inside and went past in the last few strides, stopping the clock at 4:19.43 to Hunter Bell's 4:19.54, with Kenya's Dorcus Ewoi third in 4:19.84. Alaysha Johnson edged Tobi Amusan by a hundredth in the 100m hurdles, 12.50 to 12.51, and Alyssa Jones won the long jump with a third-round 6.66m. The London meeting is part of founder Alexis Ohanian's push to turn ATHLOS into an international series, with $65,000 to each winner and $35,000 for second.