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 (AP) 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. If either loses, 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 AP Top 25:

No. 1 Oregon

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.

No. 2 Ohio State

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.

No. 3 Texas

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.

No. 11 Boise State

The Broncos are tied with Notre Dame for the second-longest active win streak, at nine games, and they seem to have adopted a survive-and-advance mantra. They trailed 23-point underdog Wyoming in the fourth quarter before winning 17-13 and clincing a spot in the Mountain West championship game. They won their previous game 42-21 against San Jose State but didn’t pull away until the fourth quarter. Two weeks ago they beat a three-win Nevada team 28-21.

No. 22 Illinois

Just when you think Illinois is about to cash in for the season, they do what they did against Rutgers. The Illini were down 31-30 when they lined up for a 58-yard field goal with 14 seconds left. Ethan Moczulski missed. But wait. Rutgers called timeout before the snap, and Bret Bielema thought better of trying another kick and sent his offense back on the field. Luke Altmyer passed to Pat Bryant for the winning 40-yard touchdown. The Illini won’t play for the Big Ten title, but they have a chance for nine wins and a nice bowl.