Karsten Warholm the Norwegian decathlete has only been a serious one-lap hurdler for a couple of years, but to have come through as World Champion must have surprised a lot of people, including Karsten himself.
There was another upset in the women's 400m, where favoured Allyson Felix was pushed back into third by her team-mate, Phylis Francis and young Salwa Eid Naser (23-May-98), who dipped under the Bahraini National record for the third time in three races - watch out for her!
Another youngster making a statement with his running prowess was Selemon Barega ETH (notable for winning the World under-18/Youth 3000m title a few weeks ago), who showed the way in taking out the second heat of the 5000m - obviously he will have Mo Farah and a few other top middle-distance runners to contend with in the final.
