Laggards at the world stage, the 27-member Indian team was not expected to win any medal but it performed better than expected in this World Championships with three finalists.
Periault and Duffy were running shoulder to shoulder but the Frenchwoman pulled away from the Bermudan on the third lap of the run.
Sebastian Coe, the head of World athletics and twice Olympic champion over the distance, described the women's World 1,500 metres final won by Kenyan Faith Kipyegon on Monday as one of the best races he has ever seen.
A summary of sports events and persons who made news on Tuesday
A summary of sports events and persons who made news on Friday
The American won in a season's best time of 9.76 seconds with his compatriot Justin Gatlin second in 9.89 and Canadian Andre de Grasse third in 9.90.
The United States is expected to run away with the athletics competition in Rio, taking podium spots often the preserve of Russians such as double pole vault gold medalist Yelena Isinbayeva and 110m hurdles world champion Sergei Shubenkov.
Lalita Babar, who competed in the women's 3000m steeplechase, became the first Indian track athlete (male and female) to finish in the top eight in a World Championship but Tintu Luka crashed out in the heats of the women's 800 metres.
Beatrice Chepkoech of Kenya, the 3,000 metres steeplechase world champion in 2019, passed this season's world leader Sembo Almayew of Ethiopia with a lap remaining to win in 9:05.98.
Some of the readings from athletes' blood tests leaked by a whistleblower for a report exposing suspected doping were so extreme they were 'downright dangerous', one of the experts cited in the report.
An overview of India's underwhelming performance in athletics
India's Avinash Sable finished a creditable fifth at the prestigious Diamond League Meet in Rabat, Morocco, shattering his own 3000m steeplechase national record for the eighth time.
Images from the World Athletics Championships in Eugene, Oregon, on Thursday, Day 7.
All the action from the World Athletics Championships on Tuesday...
A summary of sports events and persons who made news on Sunday
Kenya taekwondo champion Vincent Ochieng usually trains in school sports halls in Kisumu, but now he is working out with hundreds of other people on the gritty surface of the western city's biggest highway flyover. The government closed sports facilities in March as part of measures to contain the spread of the novel coronavirus, leaving athletes like Ochieng, who was looking forward to representing Kenya at the World Taekwondo Championships in China in October, with nowhere to train.
A round-up of results from the final day of the World Athletics Championships in Doha on Sunday
Records tumbled in Asia's most prestigious race as the Ethiopian duo of Hayle Lemi and Anchalem Haymanot blazed to victories at the Mumbai Marathon.
Jamaica's Shelly-Ann Fraser-Pryce rallied to claim an unprecedented third world championship 100 metres title in 10.76 seconds at the Bird's Nest stadium on Monday.
Ezekiel Kemboi won the steeplechase gold in 2004 at Athens and in 2012 at the London Games. His brother Isaac is hoping to replicate the success at the Rio Olympics in two years' time even if it means beating the champion sibling.
American Rai Benjamin got the track programme off to a roaring start as he stunned world record-holder Karsten Warholm in the 400 metres hurdles.
Britain's Mo Farah stormed down the final straight to retain his 10,000 metres world title in some style on Saturday and extend his dominance of men's distance running at major championships.
Medal table from the 2013 World Athletics Championships in Moscow.
With a jam-packed schedule brimming with both legendary athletes and captivating storylines, Paris 2024 promises unforgettable moments.
Kenyan athletes are in danger of hitting the wall unless traditional training methods are replaced with more modern thinking, according to the coach of Olympic 800 metres champion David Rudisha.
Ethiopia's Genzebe Dibaba eased through to the finals of the women's 5,000 metres on Thursday to stay on course for a world athletics championships double, while American Brittney Reese saw her six-year long jump reign end.
Britain's Mo Farah regained his balance after stumbling and almost falling to the track in Wednesday's heats at the world athletics championships to book his spot in the final of the men's 5,000 metres.
With 55,000 of his home fans roaring their support at the London Stadium, the 34-year-old Briton sprinted away with his 10th consecutive gold medal in a global track final, a dazzling sequence that ranks among the greatest feats in sport.
He had finished 13th in the last edition of the championships in Doha in 2019 with the then national record time of 8:21.37.
Cooler temperature and less humidity could see marathoners clock sub 2:15, says organiser of the Mumbai Marathon 2005.
The eight top men to watch at the World Athletics Championships in Doha, from September 27 to October 6.
Lucas Sang, who had competed in the 1988 Seoul Olympics, was amongst victims of the country's post-poll violence.
Kenya's Ruth Chepngetich overcame extreme heat and humidity to win the World Championship midnight marathon on Friday, in a gruelling test of survival that saw nearly a third of the 70 starters fail to reach the finish line.
Chebet picked up his first major victory in two hours six minutes and 51 seconds, with compatriots Lawrence Cherono and Benson Kipruto second and third.
Olympic champion Neeraj Chopra will begin the season at the Doha Diamond League.
Kenyans convicted of doping offences will face at least three years in prison and heavy fines under a draft law to be submitted to parliament, the chairman of a government-backed anti-doping task force.
Leonard Barsoton of Kenya and Ethiopia-based Bahraini athlete Desi Jisa set new course records in the men's and women's elite international section en route to winning titles at the Tata Steel Kolkata 25K marathon.
A summary of sports events and persons who made news on Saturday
A summary of sports events and persons who made news on Thursday
Jemima Sumgong, who last year became the first Kenyan woman to win Olympic gold in the marathon, has tested positive for the banned blood-booster EPO in an out-of-competition test carried out by the IAAF, the sport's governing body said on Thursday.