At the risk of sounding like a broken record, it never ceases to amaze me how little I know about Japan. I lived and grew up in Tokyo. But every time I come here (twice, sometimes 3 or even more times a year) there is something I never know about.
We went to spend a day in Hakone. I have been there lots and lots of times. There was a poster in the Fujiya Hotel (of the 5 oldest hotels in Japan) for the Hakone Ekiden Museum. The what? My brother then proceeds to tell me that he follows the Ekiden every year and it is the most favourite thing in his life? What? What the heck is an ekiden? How is it possible that in all the years I have been here that I have hever heard of it? It in an inter-collegiate marathon relay. It takes place every year on January 2 and 3 from Otemachi (in downtown Tokyo) to Hakone and back. It is possibly the most popular sports event in Japan. People stay home for 2 days to watch it being televised, unless they happen to be the fans that line the sidewalks to cheer the runners. It started in 1920 and 2010 was the 86th running.
On Wikipedia, it ways "Twenty universities, which belong to The Inter-University Athletic Union of Kanto (関東学生陸上競技連盟 Kantō gakusei rikujō kyōgi renmei?), can participate in this Ekiden. Ten of them have seed rights which they got the previous year, nine are the best nine universities in a preliminary contest, and the tenth is a group of runners made up of those who do not belong to any of the 19 universities but achieved a good record in a preliminary contest.
Five sections are provided between Tokyo and Hakone each way. Each runner runs one section, alternates with the next runner at a station. Each team has ten runners, running with their teams' sashes which are handed over to the next runner on the team at each station.
If a runner cannot get to a station within twenty minutes after the top runner reached it, the next runner starts with a substitute sash. The time difference is added to the goal time.
That's me in front of the Hakone Ekiden Museum. It's only five years old and only in Japanese but it was pretty interesting, especially the vidoes of the past runs. It has an incredible following. 
It's a relay race but instead of a baton, they pass on a sash. There are the winning team colours and sashes.
Chuo University has won it 14 times.

That's Ryuji Kashiwabara, the Super Rookie, who as a freshman led his Toyo University team to victory in 2009 and again in 2010. It will be interesting to see whether he makes it to the Olympics.
Again, according to Wikipedia, "To give a taste of the quality of competition in the Hakone Ekiden, consider the profile of the athletes in the 2010 (86th) race. Of the 380 athletes (190 runners and 190 alternates) that represent the 19 universities, 328 have run under 14:40 for 5,000 meters; 150 at 14:20 and 33 under 14:00. [5] This figure compares very strongly with USA collegiate men from all schools: athletic.net's list of collegiate men 5000 meters in 2009, which lists approximately 400 athletes at 14:40, 200 at 14:20 and 60 under 14:00 in 2009. Stepping up to the 10,000 meter distance, the same sources show that these 19 Tokyo universities list over 190 runners with personal bests under 30:00 (14 more sub 30 minute runners make up an all-star team of runners from other Tokyo universities); about 90 USA collegians ran under 30:00 in 2009."
It's pretty interesting. I'm not a runner but I'm impressed.
Some other odds and ends from Hakone. 
My brother drove and we stopped at a rest stop where we tried so called World's Best Bao. From a store in Yokohama that won come bao competition. It wasn't bad.
We stopped to have lunch at an odd little buffet place. The food was not bad, and what you see is the latest rage in Japan. Bread made from rice. Sanyo is coming out with a home bread machine where you put in rice grain, gluten and yeast and you get bread in 4 hours. It tastes just like bread from flour. Very odd. Something to do with rice consumption going down in Japan. Gohan is Japanese for cooked rice. Sanyo's machine is called Gopan, as in the French word for bread.
Another oddity from the same place. Water jello for dessert. Hakone is known for its hot springs and the quality of it's water so for dessert, there clear water jello with syrup. Very, very odd.
On our way back we stopped at Yokohama Chinatown for dinner. They serve dimsum there all day. An unbelievable number of Chinese restaurants. Food was okay.