Switserland, Zürich, Diamond League, Zürich Weltklasse, August 2014 Best of 2014: Zurich 1500 meter W August 28, 2014, Women 1500m, Sifan Hassan, no. 4, : 4:00.72 Source: YouTube 1500m women Diamond League Zürich 2014 August 28, 2014, Women 1500m, Sifan Hassan, no. 4, : 4:00.72 Source: YouTube 1500 m women IAAF Diamond league Zurich 2014 August 28, 2014, Women 1500m, Sifan Hassan, no. 4, : 4:00.72 Source: YouTube