Official NHA Assessment

Race 4: FOLLOW RACE COAST ON SOCIAL MEDIA MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Nicci's Law
Reference for assessment
Exact Matches
2 / 8
Calculated = Official
Close Matches
3 / 8
Within 2 points
Significant Diffs
3 / 8
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
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1    Kituba               3    60.0    1    0.00     1.5   67    65           65    -2
2    Nicci's Law          2    60.0    2    3.25     0.0   70    70           70    +0
3    Before Sunrise       3    60.0    3    3.35     1.5   73    66           66    -7
4    Scandalize           2    60.0    4    4.10     0.0   73    69           69    -4
5    Giddy Up Grace       2    60.0    5    5.85     0.0   63    68           68    +5
6    Redlight Lane        3    60.0    6    9.35     1.5   73    65           65    -8
7    Autumn Rush          3    60.0    7    10.85    1.5   66    65           65    -1
8    Onssilverjet         3    60.0    8    15.10    1.5   57    65           65    +8
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Kituba 67 78 65 +13 1.5 -
2 Nicci's Law Line 70 70 70 ✓ Match 0.0
3 Before Sunrise 73 70 66 +4 1.5 -
4 Scandalize 73 70 69 +1 0.0 -
5 Giddy Up Grace 63 65 68 -3 0.0 -
6 Redlight Lane 73 73 65 +8 1.5 -
7 Autumn Rush 66 65 65 ✓ Match 1.5 -
8 Onssilverjet 57 57 65 -8 1.5 -
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