It consisted of fourteen one-day track and field meetings, starting on May 9, 2014, in Doha, Qatar and ending on September 5, 2014, in Brussels, Belgium.
Other events were held in Shanghai, Eugene, Oslo, Rome, New York City, Lausanne, Paris, Fontvieille, Stockholm, Birmingham and Zürich.
Glasgow, Great Britain hosted the event for the first time on July 11 & 12, 2014 at Hampden Park.
Justin Gatlin, LaShawn Merritt, Renaud Lavillenie, Eunice Jepkoech Sum, Dawn Harper-Nelson, Caterine Ibargüen, Valerie Adams and Sandra Perković all defended their titles from the 2013 IAAF Diamond League while Alonso Edward, Nijel Amos, Caleb Mwangangi Ndiku, Pascal Martinot-Lagarde, Michael Tinsley, Jairus Kipchoge Birech, Godfrey Khotso Mokoena, Mutaz Essa Barshim, Thomas Röhler, Veronica Campbell Brown, Novlene Williams-Mills, Jennifer Simpson, Mercy Cherono, Hiwot Ayalew, Tianna Bartoletta and Mariya Kuchina all won overall titles for the first time in their careers.
Other successful nations included Panama, Botswana, South Africa, Qatar, Poland, Germany, Ethiopia, Colombia, Russia, Brazil, New Zealand, Croatia and the Czech Republic.