Rules and Regulations
The table is based on a points system. A match victory has a base worth of plus 300 points, a loss has a base worth of minus 200 points. Each clan rank has a ten points value in calculating points other than base values. This is best explained through example.
Clan A - 4000
Clan B - 4000
Clan C - 3500
Clan D - 3000
So, say two clans play each other and they have the same number of points. Clan A would win and Clan B would lose. Clan A gets 300 points, Clan B loses 200 points.
Now, say Clan D plays Clan A. If Clan D wins, they get 300 points, and Clan A loses 200. But, because Clan A is three ranks above Clan D, Clan D gets and extra 30 points. Also, since Clan D is three ranks below Clan A, Clan A loses an extra 30 points.
Say Clan D loses to Clan A. Because Clan A is three ranks above Clan D, they gain 30 less points, only 270. Also, since Clan D is three ranks below Clan A, they lose 30 less as well, only 170.
The most extra points you can gain is 200, from a clan ranked 20 places above your clan. The most amount you can lose extra is 150. Since the base and the amount extra possible are both greater for wins, it is easier to gain points than lose them. This rewards clans that are active and play many matches much more effectively than percentages alone.
Other statistics include win percentage, wins and losses, as well as total wins and losses through all seasons.
Each season is capped by a tourney.
Procedure
If you want your clan to be listed here, simply post with your clan's name and a link to any clan site or thread.
Evidence is not needed for updates but I encourage you to get it. If there are any disagreements, it will be needed.
Updates: Simply post whether you won or lost and who you played. Other details such as the number of players, GPs, and the score are great; I will add them to the latest updates section.
How Not to Annoy Me
I get angry at random spam in this thread. But, in all fairness, you should know exactly what I like and dislike. Then, I can shout at you with impunity, because you can't say "I didn't know".
Dislikes (not limited to only those listed here)
Dude, your sig looks like man-meat!
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500th post!
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You guys suck, you can't race well at all! We totally destroyed you, then we cut your face off and smeared it on the walls! We hacked your butts off and stapled them to our mantle, just like the noob heads we pwn every day! YEAHYEAHYEAH
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OMG this match was totally unfair becuase they weres cheatring liers and people werent waiting and stuff happenedd and crap so you should giv us the winnings for us being good and yeah!
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Post 1: Hey, want to have a war?
Post 2: Yeah, sure, when?
Post 3: How about Saturday at 5pm EST?
Post 4: We can't do that, is 7 ok?
Post 5: Well, can we push it to 8 in that case?
Post 6: Sure, 8 on Saturday is fine!
Post 7: Who is gonna host?
Post 8: We have a good hoster, he rarely DCs.
Post 9: Ok, let me get the FCs... (and so on; save it for chats or PMs)
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The contesting against us is crap! They just suck and they want to complain! This is so bull... CrazyAce, you can't possibly listen to them or give them any chance at all because we are so obviously superior. (i.e., no evidence, so shut up if you aren't contributing anything meaningful)
Likes
Good game guys, that was a great race. We have to rematch sometime!
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Match Report
Clan A vs Clan B
345-279 us
GG
[insert pic here]
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Well, even thought we won, it wasn't very fun. They were a pain to organize with and had many delays. They used practically all substitutes after we asked them not to, and some of their members glitched when it was too late for them to catch us in points. I don't recommend them.*
* Yes, you can criticize the other team, as long as it is clean, fair, and useful to other clans. Don't earn yourself a bad reputation! You can defend yourself, as long as that is fair and clean too.
Secondary Team Rules
Clans are allowed one secondary team. This is useful if a clan wishes to a have skilled top-tier set of players have a separate win-loss ratio. However, to prevent abuse, secondary team rules are strict and I will not tolerate rule violations.
Clans must indicate all players on each team's roster. One roster change is allowed every four days. Roster changes cannot happen on the same day as a war. Team rosters must be publicly accessible at a clan's thread in this forum or at a clan website. Rosters will also be listed here. Rosters will be checked against any visual evidence. Players from one team may not play in another team's war.
Teams will be designated "A" and "B" in the thread. If you have a more skilled team, please designate them as "A". If you want a nickname or special tag for either team, let me know and I will place the nickname in brackets {} next to the teams name.
Rules violations will result in a warning. Another violation and your clan loses secondary team privileges.
Registered team rosters are located inside the spoiler below:
Other Clan-Based Competitions
Want to get your clan involved in more activities? Look no further:

This Clan League holds it matches every Sunday. It is a burgeoning organization of a greater complexity and scale than even this table. If you are looking for a place to test your clan, look no further than this truly global undertaking. Created and maintained by MKRev's Bash and a team of league administrators and translators.

This tourney ranks teams in a ladder in a 3 member-per-team format. Matches consist of up to 4 teams of 3 fighting for points. Each organization is allowed two teams of 3 in the ladder. Maintained by WWA's Morgrif and a team of administrators.

This thread acts as a "king of the hill" game for every versus track. Capture your clan's best tracks and hold them against attackers! It operates in seasons and keeps track of a lot of interesting statistics. Maintained by Unity's Qgstkpnjtp. (who cares what it means?)
Clan Territory Wars
Battles Edition
Territory wars for battle courses, in short. Maintained by Unity's かわいい (Kawa).

The official Major League Gaming-sponsored site for video game tournaments and ladders. Guess what? They've got Mario Kart Wii!
Other clan resource links
Clan war scheduling V2
The MKW Forum Clan Directory
How To Run A Successful Clan v1.0
Character Statistics Comparing Calculator (very useful!)