From Last Year's Tournament Rules:
Code:
9.3.4
Match Qualifying Points
At the completion of each qualification match, each team will receive a win, loss or tie depending on the final score:
•
Each team on the winning ALLIANCE will receive two (2) qualifying points.
•
Each team on the losing ALLIANCE will receive zero (0) qualifying points.
•
In the event of a tied score, all six teams will receive one (1) qualifying point.
9.3.5
Match Ranking Points
All teams on the winning ALLIANCE will receive a number of ranking points equal to the un-penalized score (the score without any assessed penalties) of the losing ALLIANCE.
All teams on the losing ALLIANCE will receive a number of ranking points equal to their final score (with any assessed penalties).
In the case of a tie, all participating teams will receive a number of ranking points equal to their ALLIANCE score (with any assessed penalties).
9.3.7
Qualifying Score
The total number of qualifying points earned by a TEAM throughout their qualification matches will be their qualifying score. © FIRST 2009 FIRST Robotics Competition Manual, Section 9 – The Tournament, Rev A Page 3 of 10
9.3.8
Ranking Score
The total number of ranking points earned by a TEAM throughout their qualification matches, divided by the number of MATCHES played (excluding any surrogate matches), then truncated to two decimal places, will be their ranking score.
Basically you get 2 points for a win, 1 point for a tie, and 0 points for a loss. The Ranking Score is the average of all of your opponents scores. In theory the ranking score is based on unpenalized scores to a degree, but since FRC doesn't have the penalties and hanging bonuses listed anywhere except on Twitter (which is incomplete since it is missing matches), I just used the final scores of the opponents.