Here is the list from the BIG 12 website of all the football tie-breakers:
Tiebreaker Procedures
Effective July 2017
Conference Competition. All teams will be scheduled to play nine games as part of the Conference schedule competing in a round-robin format.
Championship Game Participants. The two teams that complete the regular season with the highest winning percentage(s) will be the representatives in the Conference Championship Game. The team that wins the championship game will be the Big 12 Champion.
Tiebreaker Procedure. If two teams are tied for first place both teams will participate in the championship game and the winner of the head-to-head will be the #1 seed. If more than two teams tie for first place, the tiebreaker procedures below will be applied separately, to identify each participant in the championship game.
In the event two (or more teams) tie for second or any subsequent position, the tiebreaker procedures below will be used to break all ties as necessary. For the avoidance of doubt, only Conference records will be used throughout the process:
a. If two teams are tied, the winner of the regular-season game between the two tied teams shall prevail.
b. If three or more teams are tied, steps 1 through 4 will be followed until a determination is made. If only two teams remain tied after any step, the winner of the regular season game between the two tied teams shall prevail.
1. The Conference records of the three or more teams will be compared against each other in a “mini round-robin” format.
2. The Conference records of the three or more teams will be compared against the remaining team(s) in the Conference
standings from top to bottom.
a. When comparing against the remaining teams in the Conference standings any two-way ties will be broken by head-to-head
competition before the comparison begins.
b. If more than a two-way tie exists amongst the remaining teams in the Conference standings, the record against the collective
tied teams as a group will be used.
3. Scoring differential among the tied teams. The team or teams with the lowest difference between points scored and points
allowed in games vs. the tied teams is eliminated from consideration.
4. Draw (In the event steps 1-3 cannot break a multi-team tie the prevailing team or teams will be determined by draw at the
Conference office).
In the event tiebreaking procedures are unsuccessful and a draw is necessary in determining any portion of seeding,
the following procedures will be used:
a. The draw will be conducted in public or with media attendance.
b. Institutions involved in the drawing have the right to have a local representative in attendance at the drawing.
c. A single slip of paper for each institution (with name or logo) will be placed in a container and will be drawn in order
of seeding from highest to lowest.
In the event that scheduled regular season contests cannot be played as originally scheduled, every effort shall be made to reschedule such a contest at the earliest possible date, provided that such rescheduling does not interfere with classes, examination periods, NCAA rules, or other sports prohibitions. If contests cannot be rescheduled and in the event of a first-place tie, the Conference tiebreaker system will be utilized to determine championship game participants or a Conference Champion.
Unbalanced Tie-Break Procedures to Determine Conference Championship Game Participants
In order for teams to be considered in a tie-break scenario to compete in the Big 12 Football Championship Game, teams must play no less than one fewer conference games than the average number of conference games played by all conference teams (rounded up/down at .50). For example, if the average number of conference games played in the 2020 season is 8.25 (value of 8 when rounded down) a team would be eligible to play in the Championship Game if that team played 7 conference games.
The Championship Game participants will be determined by the best winning percentages within the conference. In the event of an unbalanced schedule where there is a tie for the best, or second best, record in the loss column, head-to-head results will take precedence over winning percentage as long as the required number of conference games were completed. If the teams remain tied, the following procedures will be applied to determine the Big 12 Championship Game representatives:
Two-Team Tie.
1. Record against the next highest placed team in the conference standings (Based on winning percentage in all games played within the conference), proceeding down the standings. Two-way win percentage ties down the standings will be broken by head-to-head results. Absent head-to-head results or if more than two teams are tied in the standings with the same win percentages, results against those teams will be considered collectively.
2. Record in common conference games.
3. Cumulative winning percentage of each tied team’s conference opponents.
4. Highest ranking by the CFP Poll following the last weekend of regular-season games.
5. Draw.
In the event tiebreaking procedures are unsuccessful and a draw is necessary in determining
any portion of seeding, the following procedures will be used:
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- The draw will be conducted virtually, in public or with media attendance.
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- Institutions involved in the drawing have the right to participate virtually or have a local representative in attendance at the drawing.
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- A single slip of paper for each institution (with name or logo) will be placed in a container and will be drawn in order of seeding from highest to lowest.
Multiple-Team Ties.
The following procedures will only be used to eliminate all but two teams, at which point the two-team tie-breaking procedure will be applied.
1. Head-to-head (best record in games among the tied teams).
2. Record against the next highest placed team in the conference standings (Based on winning percentage in all games played within the conference), proceeding down the standings. Two-way win percentage ties down the standings will be broken by head-to-head results. Absent head-to-head results or if more than two teams are tied in the standings with the same win percentages, results against those teams will be considered collectively.
3. Record in common conference games.
4. Cumulative winning percentage of each tied team’s conference opponents.
5. Highest ranking by the CFP Poll following the last weekend of regular-season games.
Example 1
(Average number of conference games played is 8.25 (rounded down to 8), thus teams must have played at least 7 conference games to be considered as a Championship Game participant.)
Team A: 8-0 (Championship Game participant)
Team B: 7-1 (loss to team C)
Team C: 6-1 (win over Team B)
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- Teams B and C have both played the required number of conference games in this scenario (7).
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- Team C has the same number of losses as Team B and has a win over Team B.
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- Team C would be the second participant in the Championship Game due to the head-to-head win over Team B.
Example 2
(Average number of conference games played is 8.25 (rounded down to 8), thus teams must have played at least 7 conference games to be considered as a Championship Game participant.)
Team A: 7-0 (Championship Game participant)
Team B: 6-2 (loss to team C)
Team C: 4-2 (win over Team B)
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- Team C has not played the required number of conference games (7), thus would not be eligible to participate in the Championship Game despite the same number of losses and a win over Team B.
Example 3
(Average number of conference games played is 7.50 (rounded up to 8), thus teams must have played at least 7 conference games to be considered as a Championship Game participant.)
Team A: 8-0 (Championship Game participant)
Team B: 6-2 (loss to team C)
Team C: 5-2 (win over Team B)
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- Teams B and C have both played the required number of conference games in this scenario (7).
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- Team C has the same number of losses as Team B and has a win over Team B.
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- Team C would be the second participant in the Championship Game due to the head-to-head win over Team B.
