I was doing some research about the Wyeast 2206 Bavarian Lager Yeast I pitched into my Oktoberfest.  On the Mr.Malty website I was looking at the yeast comparison table and discovered that WY2206 is the thought to be the same strain as WLP820 Oktoberfest/Marzen strain.  (Both thought to originate from the famed Weihenstephan brewery.)  My point is that I pitched WY2206 and John pitched WLP820.  For comparisons sake it appears we are using the same yeast in our Oktoberfest Duel.