[quote]Smart One wrote:
What if he doesn't run on any of those courses?
[quote]
Then he will not have those course records. The point is that where he does run, he will obliterate the past cross country records. Then to the track and the roads, he will continue his record breaking.
I think it is of some significance that in comparison to the junior and national records of Ethiopia and Kenya, the national distance running records in the United States are rather weak. I think that relatively easier record setting path will contribute to a supremely talented runner coming here and staying here to build a legacy not as easily attained in those other countries.
Imagine a kid who runs 8:25 two milers in high school dual meets, just taking it easy before the big race next week, then shows up as a freshman in college with a victory at Boston, New York or Chicago under his belt, now really ready to train. He could be in the 26s for 10,000 meters while still in high school, making the US team in multiple events while still a prep.
I don't think today's prominent young runners will have any U.S. records on the books in 2020 in the events you listed. With the exception of the 800, it could all be one guy not yet in view and not yet ashore.