KINGSTON, Jamaica—The women’s 100m finals at the JAAA national championships look set to provide the expected fireworks with a number of top contenders lined up after Friday’s semifinals at the National Stadium. National record holder Elaine Thompson Herah, World Championships silver medalist Tina Clayton and many-time champions Shericka Jackson all qualified after the semi-finals. Jonielle Smith led the qualifying with 11.14 seconds (-1.8m/s), followed by Jackson, 11.17 seconds (-1.8m/s) and...