Jamaica’s intentions to improve their medal haul in individual events at the IAAF World Championships of Athletics continued on Saturday with four women through to the semi-finals of the 100-metre hurdles.

The fastest hurdler in the world this year, Danielle Williams looked smooth in winning her heat, strutting to 12.51  and pulling second-placed Costa Rica’s Carolina Vargas to a national record 12.68 seconds.

But Williams was still not the quickest of the heats, but neither were the athletes expected to challenge for a gold medal, as Nigeria’s Tobi Amisan won the final heat in a personal best 12.48 seconds to get the better of Jamaica’s Janeek Brown, 12.61.

Brown got out first and looked to have the field covered, but Amisan, running in lane nine, worked hard through to the line.

Williams’ main challenger, Kendra Harrison, the world record holder in the event, also won her heat, running 12.55 on the way to the semi-final.

The United States’ Briana McNeal, a challenger for a medal, is out of the event, after a false start left her disqualified, giving an opportunity to Jamaica’s Yanique Thompson to finish second in 12.85 seconds and an automatic qualification. Finishing ahead of Thompson was Italy’s Luminosa Bogliolo, who stopped the clock in 12.80 seconds.

Jamaica’s Megan Tapper was also second in her heat, clocking 12.78 seconds to finish behind the United States’ Nia Ali, who crossed the tape in 12.59.

Danielle Williams set a new national record while winning the 100m hurdles at the Diamond League meeting in London on Saturday.

Jamaica’s Megan Tapper set a new meet record and a season-best to win the 100m hurdles at the XXXIII Meeting Citta' Di Padova at the Stadio D. Colbachini in Italy where her compatriot Shelly-Ann Fraser Pryce won the 100m in 11.00 on Tuesday.

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