Clayton produced a meet record 53.56 to take the win ahead of teammates Andrenette Knight (53.87) and Janieve Russell (54.01).
Clayton is fresh off a personal best 52.81 to take bronze at the World Championships in Budapest last week. She also took bronze at the Doha World Championships in 2019.
The 33-year-old Olympic Champion got his usual slow start but showed strength and excellent technique to blaze past his competitors, including reigning three-time World Champion Grant Holloway, in a season’s best 12.96, the joint-second fastest time in the world this year.
Daniel Roberts, who took bronze behind Holloway and Parchment in Budapest last week, was second in 13.03 while Holloway ran 13.12 for third.
Parchment’s winning time was the second fastest of his career and only the second time he’s gone below 13 seconds. His personal best of 12.94 came on July 5 in 2014 in Paris.
Paulino, the reigning World champion, ran an easy 50.08 to take the win over Poland’s Natalia Kaczmarek (50.29) and the USA’s Britton Wilson (51.26). Barbadian two-time World Championship bronze medallist Sada Williams was fourth in 51.97.
Paulino, who is developing an impressive level of dominance in the event, last lost a 400m race on July 16 last year when she was third at the Silesia Diamond League.
Since then, the 27-year-old has won six races in a row. She was victorious in all three of her individual races at last year’s World Championships in Budapest before winning at both the 2023 Xiamen Diamond League and Prefontaine Classic, which also served as the 2023 Diamond League Final.
The women’s 100m hurdles saw Bahamian newly crowned World Indoor 60m hurdles champion and world record holder Devynne Charlton be narrowly beaten by reigning Olympic champion Jasmine Camacho-Quinn.
Charlton, as is customary with someone strong in the 60m hurdles, got her usual bullet start but was unable to hold off the fast-finishing Camacho-Quinn in the end. The Puerto Rican’s winning time was a meet record 12.45 while Charlton’s time was 12.49 in second.
France’s Cyrena Samba-Mayela, who took silver behind Charlton at this year’s World Indoor Championships in Glasgow, ran a personal best and national record 12.55 in third.
Jamaican two-time World champion Danielle Williams was fourth in a season’s best 12.56.
The men’s sprint hurdles saw reigning Olympic champion Hansle Parchment and Orlando Bennett run 13.33 and 13.58 for sixth and eighth, respectively.
American Daniel Roberts took the win in 13.11 ahead of countryman Cordell Tinch (13.16) and Japan’s Shunsuke Izumiya (13.17).
In the meet’s final race, Jamaican World Indoor bronze medallist Ackeem Blake ran a season’s best 10.20 for third in the men’s 100m. American 2019 World champion Christian Coleman took the win in 10.13 while countryman Fred Kerley, the 2022 World champion, ran 10.17 for second. Jamaica's reigning national champion Rohan Watson ran a season's best 10.27 in fourth.
Jamaica’s two-time World champion, Danielle Williams, will take on newly crowned World Indoor 60m champion and record holder, Devynne Charlton, as well as 2021 Olympic bronze medallist Megan Tapper.
World record holder Tobi Amusan and reigning Olympic champion Jasmine Camacho-Quinn are also set to line up on Saturday along with Americans Alaysha Johnson and Masai Russell.
The field is completed by Switzerland’s Ditaji Kambundji, 2022 World Indoor champion Cyrena Samba-Mayela and China’s Yanni Wu.
Reigning Olympic champion Hansle Parchment will compete alongside countryman Orlando Bennett in the 110mm hurdles.
Bajan two-time World Championship bronze medallist Sada Williams will line up in the 400m alongside Guyana’s Aliyah Abrams.
Bahamian Anthonique Strachan will take on some of the world’s best in the 200m.
Finally, Jamaica’s World Indoor 60m bronze medallist Ackeem Blake, 2011 World 100m champion Yohan Blake and reigning national 100m champion Rohan Watson will all line up in the 100m against a stacked field including the likes of American world champions Christian Coleman and Fred Kerley.