Got the link?
http://www.cabotcheese.coop/pages/about_us/awards.php
http://www.alwaysfoodie.com/entry/cabot-cheese-awarded-as-the-best-cheddar-in-the-world/
I am not questioning your comments about Cabot, just Tillamook. There are many different catagories within the cheese competition. Different ages, types & flavors.
Tillamook won the 2010 best in world medium cheddar, their signature cheese. That same year Cabot won first place in a sharper cheddar in which I believe Tillamook came in right behind.
Tillamook does not make a special competition cheese for these competitions as many of the others do. When you buy Tillamook cheese you are buying the cheese that won the competition.