2015 world champ and this year’s world leader Danielle Williams pulled away from two-time world indoor champion Nia Ali over the final barriers to win in 12.41 and advance to the final. Ali’s 12.44 clocking is a personal best.
Nadine Visser was level with Williams and Ali over the first three barriers but couldn’t live with their finishing strength. Nonetheless, the former heptathlete wasn’t left for dead: she crosses the line in a Dutch record 12.62.
Jamaican Megan Tapper ran a Personal Best in Semifinal 2 in 12.61s to finish second while her compatriot Yanique Thompson finished third in 12.80s. Brown finished second in the Semifinal 3 in 12.62s.