Complex sentence: José David Domínguez (born 29 December 1980) is a Spanish race walker, who finished ninth in the 20 km race at the 2003 World Championships in a personal best time of 1:20:15 hours.
Split into simpler sentences: José David Domínguez (born 29 December 1980) is a Spanish race walker. He finished ninth in the 20 km race at the 2003 World Championships in a personal best time of 1:20:15 hours.