How do you see how many losses you have?
You can either see it at the end of the game(it is the one on the left over the other team) or you can go to http://www.lolking.net/ and search for your summoner name.
JabeBot can tell you this.
I like lolmatches.com the most since it has a good Dominion section. The only bad thing is you have to install their client before it'll send stats to their server.
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