From the Rule book:
In the event three or more teams are tied with
identical records and no winner can be determined as stated previously, the
advancing team shall be determined by totaling the margin of points for each tied
team in all Conference games (or division games if two or more divisions). The
advancing team shall be the team with the greatest number of marginal points. Any
remaining playoff spots for the remaining tied teams shall be determined by the
winner over the other during—the regular season as above. The maximum number
of marginal points per game shall be eight points. No team shall add or sub- tract
more than eight points per game. The maximum number of marginal points for
any games that went into overtime shall be plus or minus one point.