What Countries Interested in Tokyo Marathon

It's been one weeks since Tokyo marathon 2014. And  I am searching a next activity while I'm in OFF mode.

• Oversea's full-marathon
• Japan's full-marathon
• Climbing Mt.Fuji
• Triathlon
• Ultra marathon
• Cave adventure(?)
• Finding unknown creatures under the sea(?)

Hmm, by the way, after Tokyo marathon I uploaded You Tube video, The Last 195m of Tokyo Marathon 2014. As you know, the owner of the video can see the statistics data. I checked the user's counties. 

Except Japan, the most watcher is from Taiwan, and Hong Kong, and then Germany, US, Thai...
This is only around 120 clicks for this video, so it is not much data enough but interesting.

I saw many Taiwan runners during race, I think there are some Tourism program for Tokyo marathon. These countries are near Japan geographically and also friendly compare with other countries, I think.

Another interesting point is 0 point from China and Korea. Does the data indicate runners from the country is not so interested in Tokyo marathon? Or You Tube is not the one of uploading video there?

And i checked another statistics data about the number of travelers to Tokyo.(国別訪日外国人旅客数) .Sorry for Japanese. By this data no.1 is Korea, no2 is China , no3 is Taiwan, no4 is Hong kong. (It changed, Taiwan is no.2 now)  Anyway these four countries are most important countries/cities for Tokyo as a Sightseeing city.

Tokyo marathon joined WMM（World Marathon Majors） in 2013 and aims an international marathon. The course is flat and easy, runners expects the great record and join the race from overseas. In my opinion in Tokyo Tokyo marathon will be one of the biggest event that collects many travelers too. and  Tokyo Olympic 2020 will start 6 years later (soon!) This data of Tokyo marathon will be a good index for that.