is running like golf?

Growing up around a bunch of golfers the idea that you can have an amazing round one day and have a horrible game the next was often talked around. The men in my family often played the same course with the same clubs, shoes and balls. I know the greens were changed slightly enough from time to time but really? Now I have some kind of sympathy for what they went through because that's what it was like for me today. I ran the same course about the same time of day with the same shoes. How could today be so difficult? While on my run yesterday I was thinking this is my marathon today. Little did I know that my "marathon" today was really going to challenge me. It was soooo difficult that every minute felt like I already ran 20 minutes. What's interesting is that I new it from the start. Maybe my dad and uncles know they're gonna have a bad day too. They seem to get through the 18 holes and even head out the next day. I'm gonna follow their lead and head out tomorrow as well.