The IFDS ranking system is based on the decisions made by the ISAF Rankings Sub-committee who have developed the system over many years for the ISAF Olympic Classes. IFDS are grateful to ISAF for allowing the use of there rankings and results management systems. IFDS are continually reviewing the system and welcome feedback.

The Paralympics Rankings are issued annually. The 2012 ranking lists were compiled using the following events:

One-Person Keelboat, 2.4mR, Two-Person Keelboat, SKUD18, Three-Person Keelboat, Sonar;
IFDS Combined World Championships, USA
Rolex Miami OCR, USA
Semaine Olympique Francaise, FRA
Sail For Gold, GBR
2012 Paralympic Sailing Competition, GBR

Ranking Points are calculated using the following method.

P = R x F x Q x YWF

Where

P = Ranking Points
R = Regatta Points
F = Event Grading Multiplier
Q = Quality Factor
YWF = Year Weighting Factor

The Regatta Points:

To determine the regatta points (R): 1st = 100 pts, 2nd = 99 pts, 3rd = 98 pts, etc.

The event grading factors are now:

IFDS World Championships and Paralympics	F=5	Top 90% receive points	Used for the IFDS Worlds
Grade 1	F=3	Top 70% receive points	Used For All Other Events

Year Weightings (YWF) are as follows:

Results in the current calendar year (last 12 months) Y=1.5
Results in the past calendar year (last 13 to 24 months) Y=1.0

Quality Factor:

Quality Factor Q = 1 + N/30

N is the number of competitors who are eligible for ranking points in the regatta and who are in the top 30 of the last published ranking list.
Q is never less than 1.0 or more than 1.5 For World Championship events and Continental Championships Q is always 1.5

Add the seven highest values of P over the last two years to determine the competitor's total ranking score.