As I’m writing this post, Peru’s long-distance runner Constantino León is racing the last five kilometers of the Men’s Marathon (42.15 km), in Beijing’s National Stadium. Out of the 95 runners who began the race, only 82 remain, and León is 63rd at the 35-km mark. The first-, second- and third-place winners have just crossed the finish line: Kenya’s Samuel Wansiru wins the gold with the impressive time of 2:06:32, setting a new Olympic Record. At 44 seconds behind Wansiru, Jaouad Gharib of Morocco grabs the silver with 2:07:16 (he also breaks the previous OR), and Deriba Merga, of Ethiopia, wins the bronze with 2:10:00. It’s an African sweep. I…