Jamaica's Tiny Clayton retained her world under-20 100m title in a Championship record of 10.95sec in Cali ©Getty Images

Jamaica’s Tina Clayton claimed her second straight world under-20 100 metres title in a Championship record and national under-20 record of 10.95sec, with her teammate Serena Cole - who is also her schoolmate - taking silver in 11.14.

Bronze went to 17-year-old Shawnti Jackson of the United States, daughter of the 2005 world 400m hurdles champion Bershawn, who clocked a personal best of 11.15.

Meanwhile Botswana's Letsile Tebogo, who reduced his world under-20 100m record to 9.91sec earlier this week, clocked another World Athletics Under-20 Championships 200m record in Cali as he won his heat in 19.99 before qualifying from his semi-final in 20.23.

Botswana's Letsile Tebogo lowered the World Athletics Under-20 Championships record for the men's 200m to 19.99sec in the heats in Cali ©Getty Images
Botswana's Letsile Tebogo lowered the World Athletics Under-20 Championships record for the men's 200m to 19.99sec in the heats in Cali ©Getty Images

Elsewhere, there was a dramatic finish in the men’s 110m hurdles where Matthew Sophia of the Netherlands saw gold slip away in cruel fashion after the final barrier, with Antoine Andrews of Bahamas earning victory in 13.23.

Sophia recovered for bronze after Malik Mixon came through for silver in a personal best of 13.27.

Kenya’s Reynold Kipkorir Cheruiyot produced a home-straight kick to win the men’s 1500m in 3:35.83 with Ethiopia’s Ermias Girma second in 3:37.24 and Kenya’s Daniel Kimaiyo third in 3:37.43.