Saturday was 3 x 5 min fast with 2 min rest and it felt good.
My 30k on Sunday was cruise-y and felt decent. A little dip from 18-25k but that is to be expected, especially when I wasn't taking in any food or gel. The last 5k felt quite good once I started to hit the hills (which is always encouraging). Came in at 2:03 which means that it was 2:53 pace for the marathon, which is good since the weather was terrible and I was purposely not going hard. 2:45 is definitely achievable, but everything is up in the air on the day.