GPP for 400m runnres

There is an example of a 400m programme (Charlie) available - DEFINITELY with reps longer than 60m … I don’t know which programme you refer to.

I do agree that 4½ weeks for SPP is not enough BUT if you cannot change it, you will have to make the best of it. My recommendation would be to use the ‘Transition’-programme of Kitkat (4 weeks) in that time. It is available on the Lactate Threshold discussion. (Will help you with the page number - sometime over the weekend!!)