That's it! A day of heartbreaks and sadness but also a day of new world champions. France's Kevin Mayer and Germany's Johannes Vetter won their first ever gold medals in the decathlon and javelin throw events. We also saw Maria Lasitskene successfully defend her title in the women's high jump event. Allyson Felix led the USA women's 4x100m relay team to victory while Sally Pearson added the World Championship title to her 2012 London Olympic gold in the 100m hurdles. It wasn't meant to be for Sir Mo Farah and Usain Bolt as they both failed to win in the last races of their careers finishing second and limping out respectively. The duo though will always be remembered as the greatest athletes ever.