Hiking/Walking:
You WILL hike or walk at some point during your race. Usually it’s when you come upon a steep vertical section, coming into the aid station, or simply need to slow down, but you do not want to stop completely. You should be doing some kind of hiking up steep terrain or fast walking on level ground at least once a week, 8 week prior to your race. The purpose of this is to train your lowest gear. You want to become efficient at your lowest speed, because there will be a time when your lowest speed is all you can do during the race.
Zone 3: (Tempo Runs)
You will be working on your lactate threshold during these runs. Your lactate threshold is the maximum amount of work rate you can sustain for long durations. Tempo runs should be at a steady effort. They should feel like they are challenging you, but not an all-out effort. The amount of time you will stay in zone 3 will be indicated in the training plan.
Long Runs:
These are the runs that will test you mentally and physically. Your long runs will also be the time you prep for the race. These training runs are not just about time on your feet, but time you will spend time experimenting with your race-day nutrition, hydration, clothes, ect. Leading up to a race you will want to have a plan of what you're going to eat, wear, ect. With that being said, your race day plan may not go as you had planned. You've got to be ok with that if something happens when you're out on the race course. That is all part of the adventure and fun of running an ultra. You never know what's going to happen out there on the trails. Being able to adapt and change is a great skill to learn.