OptionProbability
A natural ice skating race is held under the name "Elfstedentocht" before 2050, but it doesn't happen between the original eleven cities
Before May 2050
The organing association disbands without replacement before any more are held
Before May 2042
Before May 2035
An elfstedentocht is held using artificially produced ice before 2050
Before May 2029
76
63
62
54
52
38
10
