[CTcard]

Since at least 2006, at second week of Dec there have been 4 to 8 teams with only one loss to choose from for Playoff (or BCS).

Here is a quick rundown of presumed top 4 (BCS final standings)* over the final dozen years of the BCS championship game.

[* for years when #3 or 4 were either from the equivalent of today's Group of 5 conferences or where there was a second team from a particular conference, I included as an OR the next highest rated team that didn't fall into those categories. This is because of the widely held belief that when actual slots for a cfp are considered, both of those things would require extraordinary circumstances which would not be present if those teams came in at #3 or #4. For purposes of counting 2 loss teams, that makes a difference three times (once only because both happened).]

2002: Miami 12-0, tOSU 13-0, UGa 12-1, u$C 10-2
2003: Oklahoma 12-1, LSU 12-1, $C 11-1, Mich 10-2
2004: $C 12-0, Oklahoma 12-0, Auburn 12-0, Texas 10-1
2005: $C 12-0, Texas 12-0, PSU 10-1, tOSU 9-2 OR und 9-2
2006: tOSU 12-0, FLorida 11-1, Michigan 11-1, LSU 10-2 OR $C 10-2
2007: tOSU 11-1, LSU 11-2, Va Tech 11-2, Oklahoma 11-2
2008: Oklahoma 12-1, Fla 12-1, Texas 11-1, Bama 12-1 OR $C 11-1
2009: Bama 13-0, Texas 13-0, Cincinnati 12-0, TCU 12-0 OR Oregon 10-2
2010: Auburn 13-0, Oregon 12-0, TCU 12-0, Stanford 11-1 OR Wisconsin 11-1, Oklahoma 11-2
2011: LSU 13-0, Bama 11-1, Ok State 11-1, Stanford 11-1
2012: und 12-0, Bama 12-1, Florida 11-1, Oregon 11-1 OR Kans St 11-1
2013: FSU 13-0, Auburn 12-1, Bama 11-1, MSU 12-1 OR Stanford 11-2

So, over those final 12 years of the BCS, it appears a two loss team would have made a four team playoff 5 to 8 times depending upon your view of the ORs I added.
That's 42% to 67% of the time.

[CTcard]

Since at least 2006, at second week of Dec there have been 4 to 8 teams with only one loss to choose from for Playoff (or BCS).

Here is a quick rundown of presumed top 4 (BCS final standings)* over the final dozen years of the BCS championship game.

[* for years when #3 or 4 were either from the equivalent of today's Group of 5 conferences or where there was a second team from a particular conference, I included as an OR the next highest rated team that didn't fall into those categories. This is because of the widely held belief that when actual slots for a cfp are considered, both of those things would require extraordinary circumstances which would not be present if those teams came in at #3 or #4. For purposes of counting 2 loss teams, that makes a difference three times (once only because both happened).]

2002: Miami 12-0, tOSU 13-0, UGa 12-1, u$C 10-2
2003: Oklahoma 12-1, LSU 12-1, $C 11-1, Mich 10-2
2004: $C 12-0, Oklahoma 12-0, Auburn 12-0, Texas 10-1
2005: $C 12-0, Texas 12-0, PSU 10-1, tOSU 9-2 OR und 9-2
2006: tOSU 12-0, FLorida 11-1, Michigan 11-1, LSU 10-2 OR $C 10-2
2007: tOSU 11-1, LSU 11-2, Va Tech 11-2, Oklahoma 11-2
2008: Oklahoma 12-1, Fla 12-1, Texas 11-1, Bama 12-1 OR $C 11-1
2009: Bama 13-0, Texas 13-0, Cincinnati 12-0, TCU 12-0 OR Oregon 10-2
2010: Auburn 13-0, Oregon 12-0, TCU 12-0, Stanford 11-1 OR Wisconsin 11-1, Oklahoma 11-2
2011: LSU 13-0, Bama 11-1, Ok State 11-1, Stanford 11-1
2012: und 12-0, Bama 12-1, Florida 11-1, Oregon 11-1 OR Kans St 11-1
2013: FSU 13-0, Auburn 12-1, Bama 11-1, MSU 12-1 OR Stanford 11-2

So, over those final 12 years of the BCS, it appears a two loss team would have made a four team playoff 5 to 8 times depending upon your view of the ORs I added.
That's 42% to 67% of the time.