Origional I.W.G.P.

[RoaringElbow25]

I know Hogan won the first IWGP Tournament but I dunno who else was in it and how they were chosen to compete, also when and why did the IWGP Change from an annual tournament to a Championship Title?

[Hisaharu Tanabe]

http://puroresu.com/newjapan/titles/iwgp.html