Thanks, @Mike_Rowe1 
@Hakan_Widlund_L3 it’s entirely athlete-dependent and based upon how much time they have available to train on a given day, how fresh they feel, etc., so it’s impossible to say. Before the training plans were opened up with greater flexibility levels, the shorter workouts would be available during the week and longer available during the weekends. This assumed the athletes had more training time available on Sat/Sun, which wasn’t always the case.