Portugal’s Isaac Nader delivered a sensational upset at the World Championships in Tokyo, storming to gold in the men’s 1,500m and becoming his country’s first global champion in the event. The 24-year-old surged down the home straight to deny Britain’s Jake Wightman a second world title. “Some said I’d never achieve this but here I am,” Nader said proudly. Meanwhile, American Katie Moon lived up to expectations in the pole vault, securing her third consecutive world title with a 4.90m clearance. The night also saw heartbreak for defending 1,500m champion Josh Kerr, who appeared to suffer an injury mid-race.