Alison dos Santos ran 45.81 seconds, beating previous world record holder Karsten Warholm.

The reactions from Alison dos Santos and Masai Russell at the finish line some 40 minutes apart were slightly different but conveyed the same sentiment — they each were new world-record holders in the ...

The world record-holder became the Ultimate champion as Alison dos Santos won a sensational 400m hurdles clash at the World ...

Masai Russell added a world record to her Olympic gold medal.

The Diamond League saw two world records in hurdles broken by Masai Russell and Alison dos Santos. Russell is the new world-record holder in the women's 100-meter hurdles after clocking an official ...

ZURICH (AP) — Alison Dos Santos of Brazil broke the men’s 400-meter hurdles world record at a Diamond League meet on Thursday.

The first World Athletics Ultimate Championship continues Saturday, live on Peacock and NBCSN.

American Masai Russell (100m hurdles) and Brazilian Alison dos Santos (400m hurdles) set new world records during Thursday's Diamond League meet in Zurich, Switzerland.

We are officially on world record watch in the women's 100m hurdles. The event has never been deeper. Eight of the 10 fastest women in history are currently active and six are expected to line up at ...