When Adam Zucker unveiled Auburn as the No. 1 overall seed during the 2025 NCAA Tournament Selection Show, many fans reacted with acceptance, despite the Tigers having five losses that season.
All seven CBS Sports writers predicted this outcome, correctly placing Auburn on top, even though teams like Duke, Houston, Florida, and St. John’s suffered fewer defeats. It’s intriguing that there was minimal backlash, especially considering Auburn had lost directly to both Duke and Florida during the regular season.
What gave Auburn the upper hand to claim the No. 1 final spot despite a more tarnished record?
A significant factor was how the NCAA selection process values head-to-head results and the sheer number of losses, making them less critical in their overall analysis.
With Selection Sunday 2026 approaching, it’s crucial to keep this in mind, particularly given the current standings of the No. 1 seeds according to CBS Sports Bracketology, as college basketball reaches a pivotal point.
The race for the top seed is highly competitive. Arizona currently holds the No. 1 overall spot, closely pursued by Duke and Michigan. Arizona is distinguished as the only undefeated high-major team. The competition for the final No. 1 seed remains tight, especially after UConn’s narrow 81-72 loss to St. John’s. This recent loss allowed Illinois to leapfrog UConn for that coveted spot, despite UConn having one fewer loss and a head-to-head victory over Illinois.
Lessons from the Auburn Model
Auburn not only had a higher loss count than its rivals last season, but it also failed to secure the top spots in the NET or KenPom rankings. Duke led both these metrics and was also visible atop the AP poll. While Duke, Florida, Houston, and St. John’s secured their conference tournament wins, Auburn didn’t even reach the SEC championship game. Furthermore, Houston maintained better Quad 1 winning percentages, showcasing its strength at 14-3 (82.4%).
Yet, the lack of controversy surrounding Auburn’s status as the No. 1 seed raises eyebrows.
The metrics that propelled Auburn were resume-based. The Tigers ranked No. 1 in Wins Above Bubble (WAB) and Strength of Record (SOR), leading the nation with 16 Quad 1 wins and surpassing their peers in “Quad 1A” victories, tallying 9 against Duke, Florida, Houston, and St. John’s. This combination placed them on top, despite their shortcomings in other key areas.
Understanding these metrics will be vital as CBS Sports’ Bracketology model unveils the unfolding No. 1 seed landscape, as the race intensifies for the top spots leading into the 2026 tournament.
The Significance of WAB
The SOR metric is straightforward; it assesses the quality of a team’s record amid varied levels of competition. WAB, however, is more complex. Officially introduced for the 2024-25 season, WAB has added depth to the vocabulary of college basketball metrics.
WAB’s relevance was underscored last season in significant selection committee decisions. While it won’t solely dictate seeding outcomes, expect the committee to lean increasingly on WAB’s insights in its evaluations moving forward.
This metric calculates how many wins a team accumulates compared to the average bubble team (ranked No. 45 in the NET) relative to their schedule.
Currently, Duke, with a record of 21-1 and leading in WAB, holds a score of 7.83, indicating more wins than the average bubble team would achieve against that same schedule.
For deeper insights into WAB mechanics, check out Isaac Trotter’s detailed exploration from last month.
Duke’s Rankings Updated
Recently, CBS Sports Bracketology ignited discussions by ranking Duke marginally ahead of Arizona as the No. 1 overall seed. While Arizona remains unbeaten (0 losses), Duke’s lone loss came from a nailbiting one-point defeat to Texas Tech.
Despite this loss discrepancy, Duke’s standing in the NET and WAB rankings is notably higher. Both teams share nine Quad 1 victories, but Duke edges Arizona with a lead in the number of wins against teams in the CBS Sports Bracketology’s 68-team field. Furthermore, it’s been able to secure five Quad 1A victories compared to Arizona’s four.
The metrics reward Duke’s high-quality victories without overly penalizing them for their loss, reflecting a situation much like the one Auburn faced last season where their volume of quality wins outweighed their fewer losses.
Arizona’s Return to the Top
Arizona regained its position at the top when Duke descended to No. 3 in the NET. The Wildcats achieved a major advancement through a tenth Quad 1 victory—not by playing a game, but through Arizona State’s rise in the NET rankings, which upgraded a previous win for Arizona.
While this detail may seem small, it reiterates the importance of metrics in determining rankings. The prevailing sentiment in the selection committee’s evaluations is likely to favor undefeated teams over those with losses, and Arizona’s robust win column underscores this.
However, the Auburn example reminds us that the number of losses isn’t the ultimate determining factor on Selection Sunday, making Duke and Michigan formidable contenders right behind Arizona.
The Fourth No. 1 Seed Dilemma
Auburn’s example serves as a crucial reminder that head-to-head matchups have limited impact on final seeding. Otherwise, Auburn might have been pushed aside by Duke or Florida after Selection Sunday last season.
The dynamics of college basketball differ significantly from those seen in college football, where limited game data influences projections. With hundreds of teams undergoing extensive match schedules, matchup specifics frequently lack the depth needed for weighty evaluations.
When the committee over-relies on head-to-head outcomes, it may inadvertently complicate its own assessments, leading them into an analytical maze. For example, Creighton performed better against UConn yet received a lower seed, driven largely by UConn’s performance in key metrics.
For the upcoming season, UConn finds itself in a precarious position within CBS Sports Bracketology. Although they hold a head-to-head victory over Illinois and a slightly better winning record, Illinois’s superior Quad 1 wins provide them with an advantage as they vie for the final No. 1 seed.
