AP Top 25 Extra Points: As 4th team to reach No. 1 this season, Oregon's rise is sign of the times

Never mind that a faction of fans lament college sports' transition from amateurism to above-board professionalism. This football season is delivering when it comes to unpredictability and entertainment value.

It's reflected week by week in The Associated Press college football poll.

Oregon on Sunday became the fourth team to hold the No. 1 spot. No team has held on to it longer than three consecutive weeks. And three of the top five teams have a loss entering Week 9 for the first time since 2007.

Player movement through the transfer portal and promises of NIL riches in recruiting have helped spread talent across the country. Expansion in the Big Ten and Southeastern Conference created three top-five matchups before November for the first time since 1996, according to Sportradar.

The season has seen Iowa State and Indiana match their best starts, both at 7-0. Army and Navy are a combined 13-0. Cam Ward's transfer to Miami has gotten the Hurricanes out to a 7-0 start and made him a strong Heisman Trophy candidate. BYU, 5-7 a year ago, also has opened with seven straight wins.

Meanwhile, Alabama was No. 1 when it got upset by traditional SEC doormat Vanderbilt and now has two losses before November for the first time since 2006 after dropping its game at Tennessee on Saturday.

Defending national champion Michigan has lost two straight and went from the top 10 three weeks ago to out of the rankings this week at 4-3.

Florida State was No. 10 in the preseason and now sits 1-6. Oklahoma, which until two weeks ago had been ranked since the end of the 2022 season, has been outscored 69-12 in its last two games. Southern California, No. 11 three weeks ago, has lost three straight and four of five against its first Big Ten schedule.

“A good team in college, going forward, is going to be like 8-4 or 9-3. It’s just what it is,” Nebraska coach Matt Rhule said.

Checking in on five of the Top 25:

The Ducks very well could run the table against their remaining schedule, but there are potential traps. No. 20 Illinois visits this week and is riding momentum. And there are trips to Michigan and Wisconsin and a rivalry game at home against Washington. QB Dillon Gabriel gets the headlines, but RB Jordan James has elevated his game and is averaging just under 6 yards per carry and the defense is more than holding up its end.

Something magical is happening in Ames, judging by the Cyclones' improbable late comeback to beat UCF 38-35. Rocco Becht didn't have a good passing night, throwing a pick-six and almost another. He stepped it up as a runner and picked up 97 yards. Of his career-high 20 rushes, nine went for first downs and two others went for touchdowns. The Cyclones are off this week. If they beat Texas Tech at home on Nov. 2, they'll be 8-0 for the first time in program history.

The Hoosiers' 56-7 beatdown of Nebraska came at a cost. All signs point to QB Kurtis Rourke not being available for this week's home game against Washington because of an injury to his right (throwing) hand. For all the points and yards the Hoosiers have put up in Curt Cignetti's first season as coach, the defense shouldn't be overlooked. Indiana is allowing just 263 yards and 14 points per game.