Fred & George's bet

[Angela B]

No: HPFGUIDX 16523

I'm rereading GoF, and I have a question. Fred & George bet that 
Ireland would win the World Cup but Viktor Krum would get the snitch, 
and they were correct.

My question - how did they know? They bet their entire savings on an 
unlikely outcome, and these boys are ones who watch their money 
carefully, it seems.

I also have a theory - they've figured out, as this list has 
theorized, that Ron is a Seer. Not much gets by the twins, they may 
have already discovered Ron can See the future, even if he doesn't
know it. So they listened to Ron talk in his sleep, or they asked him 
what he thought would happen, and Ron said, "Ireland will win, of 
course, but Krum gets the Snitch" as a joke.

Thoughts?

Angela