Official NHA Assessment

Race 3: OPEN A TABGOLD ACCOUNT - 031 314 1874 MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Havre De Grace
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
6 / 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    Vihaan's Queen       4    60.0    1    0.00     2.0   79    2            2     -77
2    Sweeter Than Honey   5    58.5    2    1.90     0.0   64    6            54    -10
3    Havre De Grace       3    60.0    3    2.40     4.0   -     -            -     +0
4    Blue Horizon         4    60.0    4    3.40     2.0   76    3            66    -10
5    Madame Pompadour     2    60.0    5    3.80     0.0   71    7            61    -10
6    Lemon Scent          3    60.0    6    3.90     4.0   53    -1           43    -10
7    Long Street          4    60.0    7    14.70    2.0   61    2            51    -10
99   Magic Maverick       3    60.0    99   0.00     4.0   -     -2           -2    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Vihaan's Queen 79 89 2 +87 2.0 -
2 Sweeter Than Honey 64 56 54 +2 0.0 -
3 Havre De Grace Line - 75 - +75 4.0
4 Blue Horizon 76 84 66 +18 2.0 -
5 Madame Pompadour 71 56 61 -5 0.0 -
6 Lemon Scent 53 58 43 +15 4.0 -
7 Long Street 61 62 51 +11 2.0 -
99 Magic Maverick - 54 -2 +56 4.0 -
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