
In basketball, a Quad 1 win is a significant achievement. It refers to a specific ranking system that evaluates the quality of a team's wins and losses. Known as the NCAA Evaluation Tool (NET), this system replaced the previous Rating Percentage Index (RPI) in 2018 for Division I Men's basketball. The NET rankings take into account various factors such as game results, strength of schedule, game location, and the quality of wins and losses. A Quad 1 win specifically refers to a home win against a top-ranked team, typically a NET top-30, a neutral-site win against a top-50 team, or an away win against a top-75 team. These wins are highly valued and can greatly impact a team's NCAA tournament seeding.
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What You'll Learn

Quad 1 wins are considered good
In basketball, a Quad 1 win is a home win against a top-30 NET team, a neutral-site win against a top-50 NET team, or a road win against a top-75 NET team. The NET ranking system, which replaced the RPI system, takes into account factors such as game results, strength of schedule, game location, and quality of wins and losses.
Additionally, Quad 1 wins can be a good indicator of a team's strength and potential. They demonstrate that a team has the ability to beat high-ranking opponents, which can boost their reputation and standing in the eyes of the selection committee. Quad 1 wins can also help improve a team's NET ranking, as the system takes into account the quality of wins.
Furthermore, Quad 1 wins can provide valuable experience and confidence for teams. Playing against stronger opponents can help teams improve their skills, tactics, and mental toughness. It can also give them a better understanding of their strengths and weaknesses, which can be beneficial for their long-term development.
While Quad 1 wins are important, it's worth noting that they are not the only factor considered by the selection committee. Other aspects, such as overall record, strength of schedule, and losses, are also taken into account when evaluating a team's performance and potential.
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The NCAA uses the NET ranking system
The NET ranking system is used to rank both men's and women's college basketball teams and is provided publicly on a daily basis on NCAA.com and NCAA.org starting in December. The rankings are based on a variety of factors, including game results, strength of schedule, game location, net offensive and defensive efficiency, and the quality of wins and losses. The strength of schedule is a key component, accounting for 75% of the RPI calculation, and is calculated using opponents' winning percentages and the winning percentages of those opponents' opponents.
The NET ranking system uses a quadrant system to organise the quality of wins and losses based on game location and opponent ranking. Quadrant 1 includes home games against top-30 ranked teams, neutral-site games against top-50 ranked teams, and away games against top-75 ranked teams. Quadrant 2 covers home games against ranks 31-75, neutral-site games against 51-100, and away games against 76-135. Quadrant 3 includes home games against ranks 76-160, neutral-site games against 101-200, and away games against 136-240. Finally, Quadrant 4 consists of home games against ranks 161 and above, neutral-site games against 201 and above, and away games against 241 and above.
The NCAA has made changes to the NET system over time, aiming to increase accuracy and simplify the metric. In 2020, the NET stopped using winning percentage, adjusted winning percentage, and scoring margin. This was done in consultation with Google Cloud Professional Services, which helped develop the original NET. The NCAA stated that they would continue to monitor and evaluate the metric to ensure its effectiveness.
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NET rankings are updated daily
The NCAA Evaluation Tool (NET) rankings are updated daily and publicly available on NCAA.com and NCAA.org. The 2024-25 season marks the seventh season of the NET rankings, which replaced the RPI (Ratings Percentage Index) in 2018 as the primary tool for evaluating teams. The NET rankings are used to establish a team's resume, playing an important role in the selection and seeding process for the NCAA tournament.
The NET algorithm takes into account various factors, including game results, strength of schedule, game location, net offensive and defensive efficiency, and the quality of wins and losses. The quality of wins and losses is organized based on the quadrant system, which categorizes games based on game location and the opponent's NET ranking.
A Quad 1 win is considered a "good win" and is achieved when a team wins a home game against an opponent ranked in the top 30, a neutral game against an opponent ranked 1-50, or an away game against an opponent ranked 1-75. The number of Quad 1 wins can significantly impact a team's ranking and chances of making it to the NCAA tournament.
The NET rankings were developed in consultation with the Division I Men’s Basketball Committee, the National Association of Basketball Coaches, top basketball analytics experts, and Google Cloud Professional Services. The ranking model utilizes machine learning techniques and considers all games equally, regardless of the date or order.
By providing daily updates, the NET rankings offer a dynamic assessment of teams' performances, allowing fans, analysts, and selection committees to track the progress and standing of their favorite teams throughout the season.
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Quadrant ranges differ for men's and women's basketball
The NCAA Evaluation Tool (NET) ranking system is used to rank teams in Division I men's and women's college basketball. The system replaced the outdated Rating Percentage Index (RPI) in 2018. The NET rankings divide college basketball teams into four quadrants, with Quad 1 being the best and Quad 4 being the worst. The quadrants are determined by the strength of a team's wins and losses, which are calculated based on game location and the level of the opponent.
The quadrant ranges for men's and women's basketball are slightly different. The men's quadrant system uses a weighted formula that accounts for home, neutral site, and road games. A quadrant 1 win for men's teams is considered a "good win" and is defined as a home win against a NET top-30 team, a neutral-site win against a NET top-50 team, or a road win against a NET top-75 team. The women's quadrant system, on the other hand, does not differentiate based on where the games are played. Women's teams are sorted into four quadrants based solely on NET ranking, with Quad 1 comprising NET ranks 1-25.
For the 2024-25 season, the NET quadrant ranges for women's basketball were as follows: Quadrant 1 (home 1-25, neutral 1-35, away 1-45), Quadrant 2 (home 26-55, neutral 36-65, away 46-80), Quadrant 3 (home 56-90, neutral 66-105, away 81-130), and Quadrant 4 (home 91+, neutral 106+, away 131+). These cut-offs differ from those used in men's basketball, which for the same season were: Quadrant 1 (home 1-30, neutral 1-50, away 1-75), Quadrant 2 (home 31-75, neutral 51-100, away 76-135), Quadrant 3 (home 76-160, neutral 101-200, away 136-240), and Quadrant 4 (home 161+, neutral 201+, away 241+).
The differences in quadrant ranges between men's and women's basketball may be due to the varying skill levels and competition structures in the two leagues. It is important to note that the NCAA likely has hard data to support the specific cut-offs for each sport. Additionally, the NET rankings are not static and can change as the season progresses, causing games to move in and out of different quadrants.
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NET rankings are calculated using several factors
The NCAA Evaluation Tool (NET) rankings are calculated using several factors. The NET rankings system was improved in 2018 in consultation with basketball experts and Google Cloud Professional Services. The ranking model uses machine learning techniques to predict game outcomes and optimise accuracy.
The remaining factors in the NET rankings include the Team Value Index (TVI) and an adjusted net efficiency rating. The TVI rewards teams for beating quality opponents, especially away from home. The adjusted net efficiency rating is a team's net efficiency, adjusted for the strength of opponents and location across all games played. A team's net efficiency is calculated by subtracting defensive efficiency from offensive efficiency.
The strength of schedule is also considered, which is based on rating each game on a team's schedule according to how challenging it would be for an NCAA tournament-calibre team to win. This takes into account opponent strength and the site of each game, assigning a difficulty score. The overall expected win percentage versus a team's schedule can then be ranked, providing a better measure of the strength of the schedule.
Prior to the introduction of the NET rankings, the RPI (Rating Percentage Index) was used. The RPI formula comprised a team's winning percentage (25%), their opponents' winning percentage (50%), and the winning percentage of those opponents' opponents (25%). The opponents' winning percentage and the winning percentage of those opponents' opponents are also known as the strength of schedule (SOS), which accounts for 75% of the RPI calculation.
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Frequently asked questions
A Quad 1 win is a home win against a top-30 NET team, a neutral-site win against a top-50 NET team, or a road win against a top-75 NET team. The NET rankings are calculated using game results, strength of schedule, game location, net offensive and defensive efficiency, and the quality of wins and losses.
The number of Quad 1 wins and losses will be important when it comes to NCAA tournament selection and seeding. The more Quad 1 wins a team has, the better its NCAA tournament seed is likely to be.
You can track your college basketball team's Quad 1 wins using the NCAA's Quad Wins and Losses Tracker.











































