The 23-year-old clocked 22.15 seconds as Dutch star Dafne Schippers snatched victory in a season-best 22.05, with Marie-Josée Ta Lou of Côte d’Ivoire finishing second in a national record 22.08.
“I’m thankful for my performance,” said Miller-Uibo, who failed in her bid for championship double, having lost the 400m final on Tuesday.
“The ladies brought their A game and it was really competitive. That’s what I love to do, compete against the best. It was an amazing feeling, I had some fun and now I’m going home with a bronze medal too, so I’m really happy.”
Schippers and Ta Lou came off the final curve level and launched a furious battle over the last 80 metres, with Miller-Uibo trailing them off the turn. However, she found an extra gear in the last 60 metres and was closing rapidly on the duo when she ran out of time.
“It’s been a great experience for me, with my first attempt at the double. It was different but I liked it. I’m definitely going to try it again in 2019,” Miller-Uibo said.
For Schippers, her victory represented a successful title defence following her win in Beijing two years ago, and compensated for her disappointed last year at the Rio Olympics when she finished second.
“It was very important to win. I worked so hard in the last years and last year was not the easiest for me. I changed everything and got a new coach, so I’m very happy,” she said.
Ta Lou added: “Another silver but I am so happy. I did all I could in that race. To get a silver medal is more than I could have asked for. I am so grateful for having a championships like this. It has been a special week for me.”
Bahamian Tynia Gaither, the only other Caribbean runner in the final, trailed in last in 23.07.
There was also disappointment for Jamaican Aisha Praught, who crossed the line 14th in nine minutes, 44.24 seconds, was later disqualified from the women’s steeplechase final, won by American Emma Coburn in a new championship record 9:02.58.
Chantel Malone of British Virgin Islands finished seventh in the women’s long jump, won by American Brittney Reese for the fourth time with a leap of 7.02m.
Jamaica’s sprint hurdles quartet of defending champion Danielle Williams, Megan Simmonds, Rushelle Burton, and Yanique Thompson failed to make it to the championship race.
Thompson came the closest with 12.88 – the 10th best time – after she finished a close third in semi-final two.
Williams, the overwhelming favourite for a medal, had things tough from the start when she hit the first hurdle and came home fifth in 13.14.
“I crashed into the first hurdle. Maybe I got too close to it and that’s why I crashed into it and I never recovered,” a disappointed Williams said.
Burton, in the final semi-final, finished fifth in 12.94 while Simmonds was fourth in semi-final one in 12.93.
Grenadian Kurt Felix with 4,293 points ended day one of the men’s decathlon in sixth, with teammate Lindon Victor 15th with 4,192 points.
- Countries: Bahamas