From my understanding of the sequence of tie breakers (according to the rules listed in the Tournament Organizer's Handbook) it goes like this:
1st - Match Win Percentage (
MWP):
Total Wins (3 points each) + Total Draws (1 point each ) divided by Matches Played (with .33 being the absolute minimum).
2nd - Opponents Match Win Percentage (
OMWP, commonly referred to as Strength of Schedule):
The sum of all opponents MWP divided by the total number of opponents faced by each opponent.
3rd - Opponents Opponents Match Win Percentage (
OOMWP):
The sum of all opponents
opponents MWP divided by the total number of opponents faced by each opponents
opponent. (gets pretty confusing but that's the way it's laid out in the rules)
4th - Defeated Opponents Match Win Percentage (
DOMWP):
Basically the same as OMWP but divided by the total number of opponents faced by each
defeated opponent.
And, for the record, keeping track of victory points is already listed as an alternative way to determine tie breakers in that same handbook.
As far as I'm concerned if a player concedes a game the winner should get the total points of the match (i.e. 150) by default.
The above can be found in
Section C: Tournament Operating Procedures
Sub-section C.4: Tiebreakers
This is the section about Victory Points:
Quote:
Victory Points
A playerâ€™s victory points are keyed during the event, after each round. Every game format using this tie breaker will offer the possibility to key in victory points at the end of each round played. These can be linked to game objectives, or any other criteria different from match points or game points, and entered in the system for each round. The system will provide a simple sort order based on the total of victory points keyed for the current round.
Summary Victory Points
A playerâ€™s victory points are keyed during the event, after each round. Every game format using this tie breaker will offer the possibility to key in victory points at the end of each round played. These can be linked to game objectives, or any other criteria different from match points or game points, and entered in the system for each round. The system will provide a simple sort order based on the total of victory points keyed for all the rounds, cumulatively.
EDIT: Link to the handbook for those that don't have it
http://www.wizards.com/dci/downloads/TO ... b_5_07.pdf