I’m not sure what you mean. By “recent history” I was referring to all men’s championship races since 2000. That was the basis of my analysis and the reason I thought Nico winning would be possible but not likely, and why I mentioned Hicks or Maier would be the safer pick.
“Recent” is of course a relative term. In the context of NCAA cross country championships that began in 1938, I considered the previous 22 years since 2000 to be recent compared to the total history. The main thing for me in selecting which years to analyze was striking a balance between having a sufficient amount of data from which I could identify meaningful patterns and limit the influence of outliers, while still having data that are similar enough and therefore relevant and helpful for making a prediction about a race happening this year. I think I achieved that.