For Rugby World Cup fans budgeting for the trip of a lifetime to Japan this fall, the recent surge in the yen could have come at a better time. And the currency gods seem to be inflicting the most pain on followers of teams with the highest chance of winning.

Supporters from New Zealand (whose national squad is seen by bookies as the team to beat) have seen the kiwi drop 4 percent against the yen over the past three months.

Fans from second and third favorites England and Wales, according to odds from Paddypower.com, have seen the pound slide almost 7 percent.