Britain's athletes made an encouraging start on the opening day of competition in the World Indoor Championships in Istanbul on Friday morning.
Veteran Yamile Aldama qualified for the final of the triple jump with her first jump of the competition, the 39-year-old recording a season's best of 14.62 metres to easily surpass the automatic qualifying mark of 14.30m.
And Shana Cox and Nadine Okyere then both advanced to the semi-finals of the 400m, although Okyere thought she was in danger of missing out after finishing third in her heat.
The first two in each heat and six fastest losers advanced to the semi-finals, but Okyere was spared an anxious wait when Brazil's Geisa Coutinho, who had finished second, was disqualified for running outside her lane.
Cox was more impressive in winning her heat in 53.24 seconds and said: "It went well. I always think you go in with a plan, stick to your plan and execute it and that's what I did and I'll get ready for the next round now.
"I'm feeling in really, really good shape and I'm absolutely looking for a medal and a personal best."
Joe Thomas and Andrew Osagie also advanced to the semi-finals of the men's 800m, with Thomas winning his heat and Osagie going through as a fastest loser after finishing third in his race.
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