Here's what on tap today (Friday):
EDT TIME BST (LOCAL) TIME SEX EVENT ROUND
12:00 17:00 M High Jump Decathlon Startlist
14:05 19:05 W 100 Metres Hurdles Semi-Final Startlist
14:10 19:10 W Long Jump Final Startlist
14:35 19:35 W 800 Metres Semi-Final Startlist
15:10 20:10 M 1500 Metres Semi-Final Startlist
15:30 20:30 M Hammer Throw Final Startlist
15:45 20:45 M 400 Metres Decathlon Startlist
16:25 21:25 W 3000 Metres Steeplechase Final Startlist
16:50 21:50 W 200 Metres Final Startlist
It's semifinal day in the men's 1500 and women's 800. In the 1500, Robby Andrews is in the harder heat 1 (Mikhou, Manangoi, Iguider, Kiprop, Ingebrigtsen) while Johnny Gregorek goes in heat 2 (Cheruiyot, Kwemoi, O'Hare, Willis).
In the 800, Ajee Wilson is in heat 1, Charlene Lipsey is in heat 2 and Brenda Martinez is in heat 3. Heat 3 looks to be the hardest on paper with Niyonsaba, Wambui and Jozwik (2-3-5 at '16 Olympics) all in that race.
Then at 4:25 p.m. ET it's the women's steeple final. Can Emma Coburn medal for the second year in a row? Full preview here: