As a result gets older, the value of this score is reduced when calculating the Performance Index.
For the first 12 months after a race, a result is given its full value in the PI calculation.
After the first 12 months, the value of this result in calculating the PI is progressively reduced each 6 months, until 36 months when it is no longer used at all.
Time Weighting
Race Age (Months Ago) | Time Weight |
|---|---|
0–11 months | 1.000 |
12–17 months | 0.995 |
18–23 months | 0.990 |
24–29 months | 0.985 |
30–35 months | 0.980 |
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