With more than half of the 16 teams still mathematically alive to make the conference championship game, the Big 12 will command a lot of attention in the final week of the regular season.

No. 14 Arizona State and No. 17 Iowa State would play for the Big 12 title and College Football Playoff spot on Dec. 7 if they both win Saturday and there's a four-way tie for first place. There are seven other teams that begin this week with hopes, slim in most cases, of getting into the game at AT&T Stadium in Arlington, Texas.

Last week it was No. 19 BYU and No. 23 Colorado that had the inside track to the championship game. Arizona State beat the Cougars and Kansas knocked off the Buffaloes, and here we are.

“Everybody counted us out, I think, two weeks ago,” Iowa State coach Matt Campbell said after his team beat Utah 31-28. “We didn't flinch. We didn't waver. And we just keep fighting.”

The Cyclones were national darlings the first half of the season as they won seven straight games to match the best start in program history. Back-to-back losses to Texas Tech and Kansas followed. Now they've won two straight heading into “Farmageddon,” their rivalry game against Kansas State at home.

“Right now they've got the pen and they continue to write the story,” Campbell said of his players, “and I hope they will continue to write it the way they've got the ability to write it. Unwavering. Tough, mentally tough, physically tough. This group has stood for it every step of the way.”

Arizona State has been an even better story than the Cyclones. The Sun Devils have six more wins than they did last season, when they went 3-9. They were picked to finish last in their first year in the Big 12. They'll go for their fifth straight victory when they play at Arizona on Saturday.

“These guys came off no momentum and everybody doubting them, and everybody is still doubting them. That's what makes this special,” second-year coach Kenny Dillingham said. “Hopefully the expectations become higher. I don't know if there's a way we can exceed expectations more than we're exceeding them right now.”

Checking in on five of the Top 25:

The Ducks were idle Saturday after clinching a spot in the Big Ten championship game with their win at Wisconsin on Nov. 16. Oregon can go 12-0 in the regular season for the first time since 2010 if it beats Washington at home this week. Oregon's only two losses last season came against the Huskies, both decided by three points. The first was a top-10 matchup in the regular season and the second was a top-five matchup in the Pac-12 championship game. The Ducks are 19 1/2-point favorites this time, according to BetMGM Sportsbook.

The Buckeyes' showdown with upstart Indiana combined with Michigan's dropoff after winning the national championship have lowered the volume on this week's meeting with the Wolverines at the Horseshoe. If Michigan beats Ohio State a fourth straight time and it keeps the Buckeyes out of the Big Ten championship game and playoff ... well, there'll be lots of noise in Columbus then.

The Lone Star Showdown returns to the gridiron for the first time since 2011, when Texas and Texas A&M were in the Big 12. The Longhorns head to No. 20 Texas A&M on a four-game win streak. The Aggies have lost two of three after Saturday's four-overtime loss at Auburn. The winner advances to the Southeastern Conference championship game against Georgia.