Official NHA Assessment

Race 7: RACING240 FOR RACING. FOR YOU CONDITIONS PLATE (F & M) (For Fillies and Mares)

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Line Horse
Bold Diva
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
5 / 9
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    Eva Eileen           5    53.5    1    0.00     0.0   95    82           82    -13
2    Irish Willow         4    49.5    2    2.75     1.5   82    73           73    -9
3    Princess Kalisi      5    60.0    3    2.85     0.0   91    97           97    +6
4    Bold Diva            5    57.0    4    4.10     0.0   90    90           90    +0
5    Step Lively          5    56.0    5    5.10     0.0   97    87           87    -10
6    Meercat              5    54.0    6    5.60     0.0   78    83           83    +5
7    Rattle Mouse         5    52.5    7    6.35     0.0   92    80           82    -10
8    Blue Duchess         5    57.0    8    7.35     0.0   89    89           89    +0
9    First Street         5    56.0    9    10.85    0.0   96    87           87    -9
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Eva Eileen 95 95 82 +13 0.0 -
2 Irish Willow 82 80 73 +7 1.5 -
3 Princess Kalisi 91 86 97 -11 0.0 -
4 Bold Diva Line 90 85 90 -5 0.0
5 Step Lively 97 94 87 +7 0.0 -
6 Meercat 78 79 83 -4 0.0 -
7 Rattle Mouse 92 85 82 +3 0.0 -
8 Blue Duchess 89 86 89 -3 0.0 -
9 First Street 96 97 87 +10 0.0 -
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