Following on a comment by Parker Morse, who’s quasi-blogging for the International Association of Athletics Federations (IAAF) from the Beijing Olympics, I added the times that Usain Bolt ran during the heats, quarter-, semi-, and finals of the 100M and 200M races. Given that he ran four times in each event, he ran a total of 1200m and it took him 119.98 secs to do so. That’s a 99.983 pace per 1000m. That extrapolates to an ~8:20 5K. The current men’s world record in the 5K is Kenenisa Bekele’s 12:37.35. This strikes me as an interesting index of how extraordinarily fast the 5K runners are going. Of course, one could directly extrapolate rather than using the cumulative times: Mr. Bolt’s 100M time (9.62) goes out to an ~8:00 and his 200M time (19:30) goes out to an ~8:03.