SportWorld Athletics Championships: All you need to knowMatt Majendie @mattmajendie|Jenny Marc18 August 2015Beijing's iconic Bird's Nest stadium is the scene for the 2015 World Athletics Championships. The eight day event begins on Saturday amidst a series of doping allegations made by the Sunday Times.With doubts swirling around track and field stars, can the year's top athletics event deliver a fitting spectacle?With the likes of Usain Bolt, David Rudisha and Team GB medal hopes including Mo Farah, Katarina Johnson-Thompson, Jessica Ennis-Hill and Greg Rutherford in action, records could be broken. Key events Saturday 22 August (All times BST)0200-1315 - Heptathlon day one (Jessica Ennis-Hill/Katarina Johnson-Thompson)1220 - Men’s 100m heats (Usain Bolt/James Dasaolu/Chijindu Ujah)1350 - Men’s 10,000m final (Mo Farah) Sunday 23 August0200-1240 - Heptathlon day two0500 - Women’s 100m heats (Asha Philip, Shelly-Ann Fraser-Pryce)1415 - Men’s 100m final Monday 24 August1205 - Men’s pole vault final (Renaud Lavillenie)1435 - Women’s 100 final (Shelly-Ann Fraser-Pryce/Asha Philip) Tuesday 25 August1225 - Men’s long jump final (Greg Rutherford)1230 - Men’s 200m heats (Bolt/Zharnel Hughes)1335 - Women’s 1500m final (Laura Weightman/Laura Muir)1355 - Men’s 800m final (David Rudisha/Nijel Amos) Wednesday 26 August0235 - Men’s 5000m heats (Mo Farah)1200 - Women’s pole vault final (Holly Bleasdale)1215 - Women’s 200m heats (Dina Asher-Smith)1310 - Women’s 400m hurdles final (Eilidh Child)1425 - Men’s 400m final (Kirani James) Thursday 27 August1235 - Women’s 200m semi-finals (Dina Asher-Smith)1340 - Women’s 400m final (Christine Ohuruogu)1355 - Men’s 200m final (Bolt) Friday 28 August1250 - Women’s long jump final (Shara Proctor/Lorraine Ugen)1400 - Women’s 200m final (Asher-Smith)1420 - Men’s 110m hurdles final (Lawrence Clarke)1435 - Women’s 100m hurdles final (Tiffany Porter/Cindy Ofili) Saturday 29 August1130 - Women’s high jump final (Isobel Pooley/Morgan Lake)1215 - Women’s 800m final (Lynsey Sharp)1330 - Men’s 5000m final (Farah)1350 - Women’s 4x100m relay1400 - Men’s 4x100m relay (just needs to be confirmed - not on either schedule…?) Sunday 30 August1130 - Men’s high jump final1305 - Women’s 4x400m relay1325 - Men’s 4x400m relayMORE ABOUTAthleticsNest stadiumMo FarahSunday TimesUsain BoltBeijing