RunDisneyDad
Mouseketeer
- Joined
- Feb 20, 2015
- Messages
- 337
The marathon is a 99% endurance event.
This.
Our long runs help us run as efficiently as possible. Sometimes runners forget the paces we train at should be based on our current fitness level and not a random pace we think we can run or hope we can run. In @Z-Knight case you have a recent race time to give you your fitness level, so the 20% GMP runs @DopeyBadger mentions are helping you maintain and even improve your pace, but the other 80% is helping you build your endurance and get you to the finish line (specifically that last 10k). The other thing to take into consideration is your mileage as the more time you are on your feet the better chance you have of avoiding the bonk.
BTW, @Z-Knight you really are a rocket scientist in Houston? I grew up near NASA! We need to get back to putting American's back in space in our own rockets!