In the women 's field , Meseret Hailu returns to defend her title .
This looks a tough task with her fellow Ethiopian Meselech Melkamu in the field , whose best of 2 : 21 : 01 is eight seconds faster than Hamburg 's 2015 champion .
In the women 's field , Meseret Hailu returns to defend her title and this looks a tough task with her fellow Ethiopian Meselech Melkamu in the field , whose best of 2 : 21 : 01 is eight seconds faster than Hamburg 's 2015 champion .