New Zealand's Olympic 1500 metre silver medallist Nick Willis has finished off the pace at the Prefontaine Classic athletics meeting in Oregon.
Willis finished 10th in a time of three minutes 51.95 seconds, more than a second outside his personal best and almost three seconds behind the winner Haron Keitany of Kenya.
Double Commonwealth Games silver medallist Nikki Hamblin was sixth in the women's 1500 metres.
