McLaughlin- Levrone runs fastest women’s 400m in 40 times to claim world gold
• US runner takes title in 47.78 sec at World Championship • Botswana’s Busang Collen Kebinatshipi wins men’s 400m • Sydney McLaughlin- Levrone ran the fastest women’s 400 metres in 40 times to claim world crown gold in 47.78 sec on Thursday and complete her transition from the one- stage hurdles in emphatic style. •…