Does TSG cover this stuff or is there even a website which deal with this?

Kinda like wrx.

Its not updated very often (usually just at the first event of the season but Golf Digest Japan have them

http://news.golfdigest.co.jp/players/

Best way is Golf Classic Magazine.

The stuff on that link is pretty outdated.

I agree with Golf Classic! I love that magazine.

Golf Digest do the WITB after the Token Tado event so its pretty good in May, then not updated for the rest of the season...