Official NHA Assessment

Race 8: NEXT FAIRVIEW RACEMEETING FRIDAY 1 DECEMBER FM 66 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Colorama
Reference for assessment
Exact Matches
1 / 13
Calculated = Official
Close Matches
4 / 13
Within 2 points
Significant Diffs
8 / 13
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Idabelle             2    60.0    1    0.00     0.0   66    64           66    +0
2    Marshmallow          4    54.5    2    1.25     3.5   67    50           57    -10
3    Batik                3    55.0    3    1.50     6.0   55    45           45    -10
4    Colorama             6    54.5    4    2.75     0.0   55    55           55    +0
5    State Of Mind        4    60.0    5    2.85     3.5   66    59           59    -7
6    Defining Moment      2    60.0    6    4.10     0.0   66    65           65    -1
7    Venus De Milo        3    59.0    7    4.85     6.0   64    50           54    -10
8    Elusive Jewel        2    56.5    8    6.35     0.0   59    57           57    -2
9    United Express       2    58.0    9    7.60     0.0   62    60           60    -2
10   Splash Of Green      3    57.0    10   9.85     6.0   59    46           49    -10
11   Eclair               2    55.5    11   12.10    0.0   57    55           55    -2
99   Global Goddess       3    54.5    99   0.00     6.0   -     41           41    +0
99   Triomphe             3    56.5    99   0.00     6.0   -     45           45    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Idabelle 66 70 66 +4 0.0 -
2 Marshmallow 67 72 57 +15 3.5 -
3 Batik 55 57 45 +12 6.0 -
4 Colorama Line 55 54 55 -1 0.0
5 State Of Mind 66 65 59 +6 3.5 -
6 Defining Moment 66 64 65 -1 0.0 -
7 Venus De Milo 64 64 54 +10 6.0 -
8 Elusive Jewel 59 57 57 ✓ Match 0.0 -
9 United Express 62 74 60 +14 0.0 -
10 Splash Of Green 59 56 49 +7 6.0 -
11 Eclair 57 54 55 -1 0.0 -
99 Global Goddess - 54 41 +13 6.0 -
99 Triomphe - 66 45 +21 6.0 -
Assessment Methodology
Calculation Steps:
  1. Identify Line Horse - consistent performer used as reference
  2. Calculate WFA Allowance based on age, distance, and month
  3. Apply Drag Adjustment for beaten margin
  4. Calculate Actual Weight Performance:
    Weight - Drag - WFA
  5. Compare to Line Horse to determine race rating
  6. Apply special rules (maiden caps, layoff allowance)
Key Formulas:
  • Drag Effect: Varies by distance (see Benchmarks page)
  • 1 length ≈ 1kg at 1 mile (1600m)
  • WFA Scale: Based on Admiral Rous's 1855 table
  • Rating Points: 1kg = 2 rating points