5 Surprising Facts About Wrestle Kingdom

#3 The G1 Briefcase has never been successfully cashed in

Each G1 Climax winner gets their own custom briefcase

The G1 briefcase was introduced after the 2012 edition of the G1 Climax. The winner of the tournament, Kazuchika Okada, won the right to challenge the IWGP Heavyweight Champion at the following year’s Wrestle Kingdom event.

Unlike WWE’s Money in the Bank briefcase, the G1 Briefcase is often defended on major shows. The holder usually puts his case on the line 2-3 times before Jan 4th.

So far, no one has lost their briefcase – and no one has successfully cashed in.

The last time the IWGP Heavyweight Title switched hands at the Dome was in 2011 when Hiroshi Tanahashi defeated Satoshi Kojima.

Tanahashi will be in the challenger's position once again when he challenges Kenny Omega for the title at next month’s event. Rumors are swirling that Omega and his friends in The Elite will leave NJPW to set up their promotion when their contracts expire in January. Could Tanahashi be the one to finally break the streak?