Kenya’s Hellen Obiri upset defending world champion Almaz Ayana to win 5,000m gold on the final night of competition as Britain’s Laura Muir finished sixth.
Ethiopian Ayana had added world 10,000m gold to her Olympic title on the previous weekend and took the pace out hard after a slow first two laps.
Only Obiri, silver medallist in Rio last summer, could go with her as the pair ran the second kilometre in 2 minutes 28 seconds and threw in a 5 mins 40 secs two-kilometre section as the field splintered.
Ayana could not shake her shadow and with 300m to go Obiri exploded away for gold in 14 mins 34.86 secs, Ayana five and a half seconds adrift and the Netherlands’ Sifan Hassan closing fast for bronze.
Sixth in 14:52.07 represents a creditable result for Muir in her first major 5,000m final, having also finished fourth in her preferred 1500m.
Her compatriot Eilish McColgan was 10th in 15:00.43, one of many unable to follow the extraordinary pace of the front two.
Obiri covered the last kilometre in 2 mins 45 seconds and the last lap in just 60 seconds, a remarkable display of distance running dominance.