Ireland's Ciara Mageean clocked a personal best as she finished 10th in the 1500m World Championship final.
27-year-old Mageean crossed the line in 4:00.15, cutting over a second off her previous best, with Sifan Hassan of the Netherlands winning gold and setting a new championship record of 3:51.96.
Britain's Laura Muir suffered more World Championships disappointment after coming fifth.
The 26-year-old ran three minutes 55.76 seconds as Hassan added the title to her 10,000m crown.
"I'm absolutely over the moon," she told RTÉ Sport after the race.
"I said I'd come in and throw the kitchen sink at it. I did, that pace went out hard.
"I know there's girls out there who have ran 3.56 - I'm just not there yet. But whenever the pace went, I said 'Ciara don't get disheartened. You're at the back of the field but that's OK. I came into this competition ranked probably 14th or 16th and came 10th in the world. That's not a bad place to be for a wee girl from Portaferry.
"I'm delighted, it shows me that I've a lot of work to do to be where I want to be. First place is my goal in life and I'm gonna work super hard over the next while to close that gap.
"Coming down that last home straight, I was hurting. And it's very hard whenever you know you're at the back of the field. Sometimes you're mind can go.
"I did everything I could to catch the Ugandan girl and listen, 10th in the world - I put the swan on a lead and I tried my best to keep hold of it!"