Muir, who finished in four minutes 06.23 seconds, overtook Sifan Hassan on the final lap after the Holland runner finished ahead of her in the 3,000m.
Genzebe Dibaba of Ethiopia became the third athlete to win the women's 3000m title at the IAAF World Indoor Championships on at least three occasions in an exciting climax to the first day which had a sparse but enthusiastic home crowd cheering the narrow but growing possibility of a home victor in Laura Muir on the last lap.
Hassan trains as a member of the Nike Oregon Project.
Tom Walsh goes into the World indoor Championships in Birmingham this weekend as the defending champion in the shot put and the 25 year old part time builder will be aiming to repeat his win at the last edition of the World Indoor Championships in Portland, Oregon in 2016.
This was Dibaba's 4th indoor world title (3 straight at 3000m, plus a 1500m title from 2012) tying Meseret Defar for the most ever by a long-distance runner (Maria Mutola won seven 800m titles indoors).
US champion Shelby Houlihan, who trains with the Portland-based Bowerman Track Club, closed hard to take fifth in 8:50.38.
LIMERICK athlete Ciara Neville competes in the 60m heats at the IAAF World Indoor Athletics Championships in Birmingham this Friday morning.
A veterinary student from Glasgow University who has prioritised her studies over athletics in...
"I had to send a few emails saying: 'I've got a big competition coming up, is it OK if I have a couple of days?' They were fine about it".
She was forced to get a £1500 taxi from Scotland to Birmingham on Wednesday after her flights were cancelled due to the snow.
Eighteen-year-old Castletroy College student Neville has a personal best of 7.30 seconds for the 60m indoors, while her season's best time is 7.34. Her performance in the 3,000m on the opening evening of the championships tomorrow night will also set the tone for the 31-strong British team.
"I've not done anything, I was just so exhausted at the end of the race I didn't know what happened".
London was her last competition until she came out and vaulted a very respectable 4.70m of a short 10-stride run-up in Hastings in January in her first competition. "It was a good race for me". "It's not my preferred event so to do this is really incredible".
"I've always won medals in the relays but to win one on my own in an individual 400m is very special and means a lot".
Officials disqualified Windle before reinstating him and later home fans witnessed more disappointment when medal hope CJ Ujah was disqualified for false-starting in the 60m semi-finals.
After near misses at the last three major outdoor championships over 1500m, the double European indoor champion was rewarded with her first global medal in 8:45.78. The little mistakes he made he can resolve with a drill session in his warm-up.