1. If Club D wins, it would be declared the Wild Card Club and the winner of the game between Club A and Club B would be declared the Division Champion.

2. If Club C wins, then the winner of the game between Club A and Club B would host Club C on Friday, October 5th (tentatively). The winner of the game would be declared the Division Champion and the loser would be declared the Wild Card Club.

Three-Club Tie for Division Championship & Tie with Club Outside Division For Two Wild Card Spots:
After Clubs have been assigned their A, B, C and D designations (In this case, Club D would be the Club outside the Division), Club A would host Club B and Club C would host Club D on Thursday, October 4th (tentatively).

1. If Club D wins, it would be declared one Wild Card Club and the winner of the game between Club A and Club B would be declared the Division Champion. The loser of the game between Club A and Club B would host Club C on Friday, October 5th (tentatively) to determine the other Wild Card Club.

2. If Club C wins, then the winner of the game between Club A and Club B would host Club C on Friday, October 5th (tentatively). The winner of the game would be declared the Division Champion and the loser would be declared one Wild Card Club. The loser of the game between Club A and Club B would host Club D, also on Friday, October 5th (tentatively), to determine the other Wild Card Club.

Three-Club Tie for One Wild Card Spot:
After Clubs have been assigned their A, B and C designations, Club A would host Club B on Thursday, October 4th (tentatively). The winner of the game would then host Club C on Friday, October 5th (tentatively) to determine the Wild Card Club.

Three-Club Tie for Two Wild Card Spots:
After Clubs have been assigned their A, B and C designations, Club A would host Club B on Thursday, October 4th (tentatively). The winner of the game would be declared one Wild Card winner. Club C would then host the loser of the game between Club A and Club B on Friday, October 5th (tentatively) to determine the second Wild Card Club.

Four-Club Tie for Division Championship (Losing teams do not qualify for Wild Card):
After Clubs have been assigned their A, B, C and D designations, Club A would host Club B and Club C would host Club D on Thursday, October 4th (tentatively). The winners of each of those games would then meet on Friday, October 5th (tentatively), hosted by the winner of the game between Club A and Club B, to determine the Division Champion.

Four-Club Tie for Division Championship & One Wild Card Spot:
After Clubs have been assigned their A, B, C and D designations, Club A would host Club B and Club C would host Club D on Thursday, October 4th (tentatively). The winners of each of those games would then meet on Friday, October 5th (tentatively), hosted by the winner of the game between Club A and Club B, to determine the Division Champion. The loser of the game would be declared the Wild Card Club.

Four-Club Tie for Division Championship & Two Wild Card Spots:
After Clubs have been assigned their A, B, C and D designations, Club A would host Club B and Club C would host Club D on Thursday, October 4th (tentatively).

1. The winners of each of those games would then meet on Friday, October 5th (tentatively), hosted by the winner of the game between Club A and Club B, to determine the Division Champion. The loser of the game would be declared the Wild Card Club.

2. The losers of the original two games would meet on Friday, October 5th (tentatively), hosted by the loser of the game between Club A and Club B, to determine the other Wild Card Club.

Four-Club Tie for One Wild Card Spot:
After Clubs have been assigned their A, B, C and D designations, Club A would host Club B and Club C would host Club D on Thursday, October 4th (tentatively). The winners of each of those games would then meet on Friday, October 5th (tentatively), hosted by the winner of the game between Club A and Club B, to determine the Wild Card Club.

Four-Club Tie for Two Wild Card Spots:
After Clubs have been assigned their A, B, C and D designations, Club A would host Club B and Club C would host Club D on Thursday, October 4th (tentatively). The winners of each of those games would be declared the Wild Card Clubs.

SOURCE: MLB.com