1. Assume you had to start in five minutes from the time you're done reading this post.
2. Assume the weather is as it is outside your door right now. Assume the weather will not change.
3. Assume you have the desired clothing/attire.
4. Assume you'll have access to any food/beverages you'd like during the marathon. These items will be available to you at anytime during the course of the 26.2.
5. Assume the course is pancake flat at sea level.