Jason and Kevin discuss the first half of the Diamond League finale in Zurich including Lashawn Merritt and Almaz Ayana's impressive victories, David Rudisha's sub-par end to his season and Asbel Kiprop's effortless win.

The guys also look ahead to Friday's meet in Brussels and talk about an interesting 200m match-up with Wayde Van Niekerk and Justin Gatlin and how fast Allyson Felix needs to run to win Athlete of the Year.