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The 16-year-old clocked an impressive 13.84 seconds in the junior boys' 110 m hurdles final.
The talk of the Tokyo track, however, was the failure of the formerly all-conquering American men.
The Norwegian who broke Kevin Young's 29-year world mark in 400m hurdles last month with a time of 46.70 seconds blew his own record away with an astonishing 45.94 run.
Ann Rose Tomy of Idukki clocked 13.98 seconds to fetch silver in the Federation Cup Jr Championship in Punjab to meet the worlds' qualifying mark
Warholm beat 1992 Olympic champion Young's mark of 46.78secs, which was set four years before the Norwegian was born and was the longest-standing record in men's track.
The 21-year-old, who booked her spot at the Tokyo Games, seized the lead around the final bend and into the home stretch to power home and beat Rio Olympic champion Dalilah Muhammad's previous mark of 52.16 seconds.
It was only the second instance in history when an Indian male hurdler has reached the semifinals of the World Athletics Championships.
The 32-year-old Australian, who won Olympic 100 metres hurdles gold at the 2012 London Games and the world title in 2011 and 2017, said she had been forced into the decision by a string of injuries.
Results 1-8
