Just seven hundredths of a second separated Laura Muir from claiming a World Championship bronze medal on Monday evening (7 August). The 24-year-old could not hold on in the final 100m and finished fourth in a thrilling sprint finish at the London Stadium, having been overhauled by Caster Semenya on Monday night.
Olympic champion Faith Kipyegon took gold in a time of four minutes 2.59 seconds, with America's Jenny Simpson clinching silver in 4:02.76. Muir came home in 4:02.97.
Muir came into London with a stress fracture that she suffered in June, and confessed after the race that it may have played a part in her failure to land a medal.
Muir said: "When you think about it, I was in the pool for two weeks and missed sessions for the best part of three weeks. You wonder would that have made a difference? I'm gutted but also appreciative of the opportunity I was given.
"I ran as hard as I could right to the very line but there was nothing I could have done once they came past me. I gave myself the best chance I could, I just wasn't strong enough.
"I think I covered every move I could have done. The other girls were faster on the day and there was nothing I could do about that.
"I was that tired I wasn't thinking about it but I knew when I crossed the line it had just gone. I could tell Caster was a fraction ahead of me. I ran as fast as I could and fourth was what I got.”
It compounded Muir's despair after she finished second last at the 2014 Commonwealth Games, following a late collision, and seventh at last year's Olympics - after being in medal contention until the final 200m.
She added: "I've had quite a lot of them (lows) so far. I thought Glasgow at the Commonwealth Games was hard, last year in Rio was hard and now this. I'm a bit up and down but it's hard. I can't say anything more."