Tobi Amusan wasn’t leading at hurdle four — so how did she win with an African record of 12.42?
Discover the biomechanical edge that separated Amusan from Tapper, Visser, and the entire field.
Zurich Diamond League final: nine barriers, four national records, and one decisive back-half shift.

This breakdown tracks each phase of the race — drive, middle-section efficiency, and the critical run-in — to show exactly why the 100m hurdles is never decided in the first half. We analyse stride frequency, hurdle clearance angles, and the ground-contact mechanics that allowed Amusan to close from behind and produce the fastest run of her career at that stage. Visser’s Dutch record and Tapper’s Olympic-medalist form make this one of the most technically rich hurdles fields ever assembled at a Diamond League final.

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