Nigerian Tobi Amusan, 26, beat Americans Harrison Kendria and Ali Nia to set a new World Record for the fastest time in a 100-metre hurdles race.
However, she had no idea she had won, not to talk of setting a record.
Amusan set this record at the Silesia Diamond League, taking place at the Silesian Stadium in Poland.
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Tobi Amusan said: “It was not easy for me with injuries in my hamstring and my knee. But I trusted in my coach and my work.
“It’s all about the process. I just won this in a smooth style; I was just running. Honestly, I had no idea that I won when I crossed the finish line.”
Amusan set a time of 12.34 seconds to become the official fastest time in a 100-meter hurdle race.
She was closely followed by Americans Harrison Kendria and Ali Nia, who came second and third, respectively, at a time of 12.35 and 12.38 seconds.