Official NHA Assessment

Race 1: Hollywoodbets DURBANVILLE WELCOMES YOU MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Meghan's Diamond
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
3 / 10
Within 2 points
Significant Diffs
6 / 10
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    Ebisu                2    60.0    1    0.00     0.0   82    76           76    -6
2    Future Red           3    60.0    2    2.00     3.0   -     73           73    +73
3    Meghan's Diamond     2    60.0    3    2.30     0.0   78    78           78    +0
4    Kiera Rose           3    60.0    4    2.80     3.0   -     72           72    +72
5    Rare Earth           3    60.0    5    3.20     3.0   62    72           72    +10
6    Epernay              4    56.0    6    4.45     2.0   -     64           64    +64
7    Sparkling Sky        3    60.0    7    5.45     3.0   -     70           70    +70
8    Aurelian             2    60.0    8    6.20     0.0   74    76           76    +2
9    Before Sunrise       3    60.0    9    6.50     3.0   -     70           70    +70
10   Divine State         3    60.0    10   8.50     3.0   -     70           70    +70
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Ebisu 82 83 76 +7 0.0 -
2 Future Red - - 73 -73 3.0 -
3 Meghan's Diamond Line 78 76 78 -2 0.0
4 Kiera Rose - 74 72 +2 3.0 -
5 Rare Earth 62 64 72 -8 3.0 -
6 Epernay - 64 64 ✓ Match 2.0 -
7 Sparkling Sky - - 70 -70 3.0 -
8 Aurelian 74 68 76 -8 0.0 -
9 Before Sunrise - 74 70 +4 3.0 -
10 Divine State - 62 70 -8 3.0 -
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