I’m curious as to why your cadence picks up but pace is pretty consistent. Did you alter your stride for any specific reason?

In my experience with long distance training it’s much easier to get through runs if you figure out how to pace yourself throughout the course of a run. I could finish a given training run faster but feel worse and have long we recovery after which isn’t ideal for the long consistent training program needed for a marathon.

EDIT: also since marathon training involves ramping up distance over time keeping a consistent pace is good so you’re not pushing yourself by improving on two metrics at once. If you tan the same distance every time I’d expect your pace to increase over time.