The UMich alum and former teammate of Nick Willis is set to become the first ever sub-4 miler and TDF finisher.
On that note: how many of today’s current distance runners could finish the Tour given, say, a year of cycling training? Who? Could any (Kipchoge, Farah, Rupp?) contend for top 10/3 in the GC?
In one year? Absolutely none. They wouldn't finish in the elimination on the first stage. At that level they all have aerobic capacity, it's everything else they don't have.
How many TdF podium winners given, say, a year of running training, would be able to make it to the Olympics in the marathon?