What is the longest potential maturity for a bet that you've ever seen?
Election betting is always around, which means you will wait around 4 years to find out if a bet will cash or not (both for Australian and US elections).
Elections aside, it is rare to see any bets that will take more than 12 months to be decided from the moment the bet is placed.
Centrebet is currently running the following bet:
Consecutive Wimbledon Titles won by Roger Federer - Wimbledon Titles
Exactly 5 Consecutive Titles 2.25
Exactly 6 Consecutive Titles 3.10
Exactly 7 Consecutive Titles 5.00
Exactly 8 Consecutive Titles 10.00
Exactly 9 Consecutive Titles 17.00
10 Consecutive Titles or More 26.00
So if Federer were to win the 2008, 2009, 2010 and 2011 Wimbledon titles, this bet would not be decided until Wimbledon 2012.
A long time to wait while CB does whatever it wants with your money