The nearest person to you on the team in terms of predicted paces is me. My strategy is to try and run consistent splits throughout of around 4:45-4:50. I do have more experience of longer distance runs, but if I was in your shoes I would simply try and stick with the coach for as long as possible and just see what happens. We both know you could hold this pace comfortable for 10 miles. If I wasn’t running and didn’t think that was a good approach I would be inclined to suggest aiming for 5 min kms and then perhaps looking to pick up the pace once you hit Hastings Seafront.