Dos Santos shatters 400m mark as world records fall in Zurich
- Dos Santos: 2 events in the last 90 days
- Previous: earlier the same day · Alison dos Santos breaks men’s 400m hurdle world record with 45.80s run at Zurich Diamond League
What happened
Brazil's Alison dos Santos smashed the 400m hurdles world record in an astonishing night of action at the Zurich Diamond League meeting.
Summary assembled by rule from the sources below