The NET rating is the main formula used to help the NCAA Division I Men’s Basketball Committee select and seed the 68 teams for the NCAA Tournament. The NET’s main feature is that it responds to and recognizes margin of victory. Losing by 25 or 3 points will significantly affect NET rankings. The formula called the RPI (ratings percentage index) used to be the main baseline formula or standard used by the committee. The NET has replaced the RPI, effective last year. This is the second year with the NET rankings. You can find them at the NCAA.com website.