The world's greatest athletes arrived in Moscow knowing their sport was in need of public rehabilitation after a year of seemingly endless doping scandals.
Here BBC Sport picks out some of the daily highlights at the 2013 World Championships.
Day 1 - Saturday, 10 August
- Britain's double Olympic champion Mo Farah won his first world title over 10,000m with a brilliant sprint finish.
- Edna Kiplagat of Kenya became the first woman ever to retain the world marathon title as she won in 2:25:44
Day 2 - Sunday, 11 August
- Jamaican Usain Bolt regained the 100m title that he won in 2009, but missed out on in 2011, finishing ahead of American Justin Gatlin in a time of 9.77 seconds.
- Great Britain team captain Christine Ohuruogu made it into Monday's 400m final as the second-fastest qualifier behind defending champion Amantle Monthso.
- In the absence of compatriot Meseret Defar, Ethiopia's Tirunesh Dibaba claimed her fifth world title by maintaining her unbeaten record over 10,000m.
Day 3 - Monday, 12 August
- Britain's Christine Ohuruogu beat defending world champion Amantle Montsho in a photo finish to regain her world 400m title with a new British record of 49.41 seconds.
- Double Olympic champion Shelly-Ann Fraser-Pryce powered to 100m victory in 10.71 with defending champion Carmelita Jeter third.
- David Oliver of the United States secured the 110m hurdles gold, New Zealand's Valerie Adams won her fourth straight shot put title, Raphael Holzdeppe of Germany took pole vault gold and Pawel Fajdek of Poland the men's hammer title.
Day 4 - Tuesday, 13 August
- Dai Greene, one of Great Britain's two defending champions coming into the Championships, is eliminated in the semi-finals of the 400m hurdles, but Perri Shakes Drayton advances to the final of the women's event.
- Russian Yelena Isinbayeva delights the home fans as she claims a third world pole vault title in possibly her final career appearance in her native country.
- American LaShawn Merritt beats disappointing defending champion Kirani James in the 400m final while Robert Harting (discus), Mohammad Aman (800m) and Micah Chemos (3,000m steeplechase) also secure titles.
- Ukranian Ganna Melnichenko wins the heptathlon with British youngster Katarina Johnson-Thompson fifth in a personal best total of 6,449 points.
Day 5 - Wednesday, 14 August
- Olympic long jumpchampion Greg Rutherfordfails to qualify for the long jump final.
- Fellow Briton, and former world junior champion, Sophie Hitchon also misses out on a place in a Worlds final. The 22-year-old threw 68.56m in the women's hammer- just under two metres short of a final-12 spot.
- Ireland's Robert Heffernan becomes the country's first male world champion in 30 years with victory in the 50km walk.
Day 6 - Thursday, 15 August
- Britons Perri Shakes-Drayton and Eilidh Child miss out on medals in the women's 400m hurdles final as Czech athlete Zuzanna Hejnova takes gold in a 2013-best time of 52.83 seconds.
- Another Briton, Hannah England, finishes fourth in a hotly-contested 1500m final won by Sweden's Abeba Aregawi.
- England's team-mate Robbie Grabarz finishes out of the medals in the men's high jump. Bohdan Bondarenko of Ukraine sails over 2.41 for gold then just misses out on clearing a world-record height of 2.46m.
- Jehue Gordon of Trinidad and Tobago wins the men's 400m hurdles title by one hundredth of a second from USA's Michael Tinsley.
Day 7 - Friday, 16 August
- Britain's Mo Farah becomes only the second man in history to complete an Olympic and world 'double-double', adding the 5,000m title to his 10,000m crown
- Jamaica's Shelly-Ann Fraser-Pryce secures a sprint double with victory in the 200m, as Olympic champion Allyson Felix fails to finish because of a hamstring injury.
- Britain's Adam Gemili becomes only the second British man to run under 20 seconds for the 200m in qualifying for Saturday's final. Defending champion Usain Bolt is also comfortably through.
- The United States team of David Verburg, Tony McQuay, Arman Hall and LaShawn Merritt win the men's 4x400m ahead of Jamaica and Russia. Britain finish fourth.
Day 8 - Saturday, 17 August
- Usain Bolt clocks 19.66 seconds to win the 200m - his seventh World title. Briton Adam Gemili finishes fifth in 20.08.
- Great Britain's Tiffany Porter - bronze - in the women's 100m hurdles. Brianna Rollins, 21, takes gold in 12.44 seconds ahead of Olympic champion Sally Pearson.
- British quartet of Eilidh Child, Shana Cox, Margaret Adeoye, Christine Ohuruogu win bronze in the 4x400m relay final. Russia just edge out United States in the final 50m to take gold.
- Ethiopia's Meseret Defar adds the world 5,000m title to her Olympic crown.
- Stephen Kiprotich fends off his Ethiopian rivals in the final two miles to take gold in the men's marathon.
Day 9 - Sunday, 18 August
- Usain Boltand thereby became the most successful athlete in the history of the World Championships. Great Britain finished third but were demoted for an illegal handover.
- Jamaica's women also won relay gold and in the process secured a third gold medal for Shelly-Ann Fraser-Pryce. Great Britain won bronze after France were disqualified.
- Kenya's Asbel Kiprop defended his 1500m title and Teddy Tamgho won a high-quality triple jump with a leap of 18.04m, while Eunice Sum won the women's 800m final and Germany's Christina Obergfoll, a two-time silver medallist, finally won javelin gold.