Hi,
well today starts the "United-LAN" in Meschede. (and it ends on the 30th)
There is a MKW & MK7 tournament (and other games too), but no MKDD, but there are lots of oldschool players there and if you bring a MKDD (and maybe a GC), I'm sure you will find somebody to play.
Here's the site & a forum to talk about it:
http://united-lan.de/http://gaming-elite.eu.sh2072.evanzo-server.de/g37forum/index.php?page=Board&...This is normally 2 times a year (1 in summer, 1 in winter).
aaand
In February there was a "Mario Kart Meeting" with a MKDD & MK7 tournament in Witten:
http://mario-kart-wii.de/forum/viewtopic.php?f=61&t=1920I don't know if that was a one time thing or if there will be another one anytime soon.
There are also events called NWarp and NCon hosted once a year (I think) and one of these normally has a MKDD tournament.
Ok just checked the site:
http://www.nwarp.de/turniere-n-warp-viii/Here you can see that this year at the NWarp was a MKDD tournament.
So there is definitely something going on in Germany, but I think all the events of 2012 are already done, except for the United-LAN just now, and the Winter United-LAN (if there is one).