It marks the first sellout at Boulder's Folsom Field since Texas came to town on Oct. 4, 2008. Until today, that game against Texas has been the only sellout at Folsom since 2005.
The Buffs (9-2, 7-1 Pac-12) are ranked No. 9 nationally in the College Football Playoff rankings and the Associated Press and Amway Coaches' polls. With a win against the Utes (8-3, 5-3; No. 22 CFP, No. 21 AP, No. 20 Coaches), Colorado would claim the Pac-12 South division.
It's been a good year for the Buffs in terms of attendance. Coming into today, the Buffs have averaged 45,470 fans in their first five games at Folsom - a huge jump from the 39,389 average of a year ago.
During head coach Mike MacIntyre's first three years (2013-15), the Buffs drew at least 40,000 fans just three times in 18 home dates. Saturday will mark the fifth consecutive game with at least 43,761 fans.
This past spring, the Pac-12 Conference made the decision to start handing out fines to schools who violate the court/field storming policy.
The new policy has already been costly to CU.
The school was fined $25,000 after fans rushed the field following CU's 40-16 win against Arizona State on Oct. 15.
Last weekend, fans rushed the field again after a 38-24 win against Washington State. A spokesman from the Pac-12 told Buffzone.com this week that the conference is still reviewing that situation.
A third offense would cost CU a $100,000 fine.
Earlier this week, CU athletic director Rick George posted a video on social media urging fans to stay in the seats to celebrate if the Buffs beat Utah today.
Incentives for MacIntyre, George
CU's success this season has already helped MacIntyre earn $275,000 in performance bonuses, and he could still collect a lot more.
MacIntyre has seven incentives "related to competitive success" written into his contract, which was signed on April 8, 2014. He has already hit three of those:
1. $200,000 for taking CU to a bowl game
2. $50,000 for reaching 7 wins in the regular season
3. $25,000 for reaching 8 wins in the regular season
If the Buffs beat Utah and reach the Pac-12 championship game, MacIntyre would earn a $100,000 bonus, and if he is named Pac-12 coach of the year, he'll earn a $25,000 bonus. MacIntyre could potentially collect $1 million in bonuses if the Buffs get to and win the College Football Playoff.
The football team's success could also lead to bonuses for George. He would collect $25,000 if the Buffs win the Pac-12 South division, $25,000 if they win the Pac-12 title game, and $200,000 if they win the national championship.
Milestones within reach
A few Buffs could reach personal milestones today against the Utes.
QB Sefo Liufau: He has 59 career touchdown passes - one shy of the school record of 60 by Cody Hawkins.
RB Phillip Lindsay: He ranks 15th in CU history with 2,125 rushing yards, and he collects at least 118 yards today he could move up to 12th, potentially passing Kayo Lam, Cortlen Johnson and Lamont Warren.
WR Shay Fields: His 135 career catches is tied for seventh all-time with Rae Carruth. With two catches, he would pass Carruth and Javon Green for sixth place. With a huge day, Fields could reach 2,000 career receiving yards, but he needs 175 yards to get there.
Jimmie Gilbert: He has 19 career sacks, and needs just one to become the ninth player in CU history with 20. Only five players in CU history have as many as 21.
Contact staff writer Brian Howell at email@example.com or twitter.com/BrianHowell33.