Olympic 100 metres champion Julien Alfred of St Lucia won her heat for the women’s 200m on Sunday but was only sixth fastest overall as she targets a shock sprint double. All eyes were on 100m world champion Sha’Carri Richardson of the US in Saturday’s blue riband final, but Alfred dominated to take the Caribbean island’s first ever Games medal and is now targeting a 200m gold too. The world 60m champion ran 22.41 seconds to easily qualify. American Gabrielle Thomas, all ready the season leader, was quickest in 22.20 ahead of Nigeria’s Favour Ofili, who set a season’s best 22.24. There was a s…