Complex sentence: Jenkins won a gold medal in the 110m hurdles at the 2005 IAAF World Youth Championships in Athletics in Marrakesh, Morocco, by defeating Ryan Brathwaite with a time of 13.35.
Split into simpler sentences: Jenkins won a gold medal in the 110m hurdles at the 2005 IAAF World Youth Championships in Athletics in Marrakesh, Morocco. Jenkins defeated Ryan Brathwaite with a time of 13.35.