Quidditch Rules Question

[Jeremy Welsh]

No: HPFGUIDX 11443

Hello all.
     The other day, after thinking about Quidditch for some reason, a question popped into my head that I actually had when I first started reading the books.  I just checked out the Lexicon, hoping to find a listing of the Quidditch rules, but I couldn't seem to find them.  If these rules exist anywhere on-line, I apologize for wasting bandwidth, but I didn't find them. 
     My question is this: How does a team actually win a Quidditch match?  Here is my understanding: throughout the match, Chasers attempt to score goals with the Quaffles; while this is going on, the Seekers from each team are on a hunt for the Golden Snitch.  If the Snitch is caught, that team automatically receives 150 points, and the game is over - usually 150 points is enough to win the game.  But what happens if the Seeker accidentally catches the Snitch while they are losing by 151 points?
     And please pardon my forgetfulness (if this indeed happen), but did something like this happen with Krum?  I don't have the Goblet of Fire in front of me right now, so I can't consult.

Thanks much!


jeremy welsh

"I call Architecture frozen Music."
     -Johann Wolfgang von Goethe, (1749-1832)