After a lot of research around the web I've drawn up an archive of old Rancid tourdates over the years... I worked very hard to check every single show so I can easily say this is the most accurate list of known Rancid shows in the whole web. I'm pretty sure it still missing LOTS of other dates especially recent ones so if you know something about more Rancid shows or you have found any inaccuracies on this tourdates list please contact me and warn me about that.
I've just found out that my shows list was added to the official wikipedia rancid page. I'm very proud about that.

Be sure to have a look into the official Rancid site to check all upcomings Rancid Shows