Would it be possible to display on the backs of the blue guys (or above them the way rider names appear) the approx. lap time at which they are riding? This way if you want to ride at a particular pace, or get a feel for a particular pace you can jump on the bak of one of the virtual riders to experience and practice pacing.
I realise that all the numbers are there on screen for how you are riding anyway, but if you want to train for a particular time having a pace rider to practice with helps, in much the same way that large marathon running events have pace runners that amateurs can run with aiming for a set time.
Possibly even colour the blue guys different based on fast medium or slow pace as a further option.