Spectators tuning in to the end University of Colorado’s last two home games saw thousands of jubilant fans rushing the field. But school officials may have been watching tens of thousands of dollars rushing away.

CU could be fined up to $150,000 under a new Pac-12 Conference policy against rushing the field that already has cost the university $25,000 this year.

In a new policy set by the conference for this academic year, a university can be fined $25,000 for its first offense, $50,000 for its second offense and $100,000 for its third offense.

The Pac-12’s fines are automatic if fans are on the football field or basketball court within 60 seconds of a game ending — a delay intended to give the visiting team’s players and coaches, as well as officials, time to safely get off the field or court.

CU already was fined $25,000 this fall after fans rushed the field following a 40-16 win over Arizona State on Oct. 15.

Fans also rushed the field after CU’s last two victories at Folsom Field — a win over Washington State on Nov. 19 and a win over Utah on Saturday — and conference officials this week confirmed that both of those incidents are under review and could result in additional fines.

The only other school to have its fans rush the field in the Pac-12 this year is the team CU faces in the conference championship on Friday night: the Washington Huskies.

David Hirsch, the Pac-12 vice president of communications, confirmed that Washington also was fined after its fans stormed the field following a September upset over Stanford, which was ranked No. 7 at the time.

CU athletics spokesman Dave Plati said the university would pay any fines out of the department’s operating revenue or contingency fund if needed.

Before the Utah game, CU began circulating videos on social media asking fans to wait one minute before rushing the field. The university also made several announcements and aired a video of CU Athletic Director Rick George asking fans to wait during the Utah game.

George himself could be seen pacing the south end of the stadium holding a single finger up in the air during the last seconds of Saturday’s win, and it wasn’t to signify the Buffs’ No. 1 finish in the Pac-12 South.

Ironically, the policy against field and court rushing was ushered in after Arizona basketball coach Sean Miller expressed his displeasure with Buffs fans storming the court after CU’s upset win at Coors Event Center in February.

The policy was announced in May.

“The Pac-12 Council carefully considered this policy and its impact on our fans who loyally support our teams,” Mike Williams, director of athletics at the University of California, Berkeley, said in a statement at the time. “This enhanced policy underscores the importance our universities place on the safety and welfare of our student-athletes, officials and fans, and will allow us to educate staffs and fans on procedures going forward.”

CU students have made a habit out of flooding onto Folsom Field since the turn of the century.

Fans rushed the field following upsets against ranked programs like Nebraska in 2001 and Oklahoma in 2007, but also for victories against a 1-3 Georgia team in 2010 and a two-win Arizona team in 2011.

Mitchell Byars: 303-473-1329, byarsm@dailycamera.com or twitter.com/mitchellbyars