Clemson has climbed another spot, to seventh, in the USA Today Coaches' Poll after moving to 8-1 with its 59-10 rout of Virginia on Saturday.
The Tigers are the nation's second-ranked one-loss team behind Stanford, which holds the No. 6 spot.
The top five remained unchanged, with Alabama ranked No. 1, followed by Oregon, Florida State and Baylor.
Oklahoma is ranked eighth, Missouri ninth and Auburn 10th.
Topping the second 10 is Oklahoma State, followed by LSU, Texas A&M, Miami, South Carolina, Louisville, Fresno State, UCLA, Michigan State and Northern Illinois.
Central Florida is ranked 21st, and is followed by Wisconsin, Texas Tech, Arizona State and Notre Dame.
Duke was the only other ACC team to receive votes.
Clemson also moved up one place, to eighth, in the Associated Press Top-25.
The same 25 teams are ranked in both polls, with slight differences in order.
For the second straight week, Auburn is ranked one spot ahead of Clemson in the AP poll. LSU holds the No. 10 spot, with Texas A&M 11th, Oklahoma 12th and South Carolina 13th. Miami is 14th, followed by Oklahoma State, UCLA, Fresno State, Michigan State, Central Florida and Louisville.
The final five are Wisconsin, Northern Illinois, Arizona State, Notre Dame and Texas Tech.
Clemson also moved up a spot, from 8th to 7th, in the Harris Interactive Poll, which, like the coaches' poll, is part of the BCS formula.