Official NHA Assessment

Race 1: 4RACING WELCOMES YOU MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Secret Life
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
1 / 11
Within 2 points
Significant Diffs
5 / 11
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    Top Secret           2    57.0    1    0.00     2.0   -     -            -     +0
2    Celtic Manor         2    57.0    2    0.40     2.0   -     -            -     +0
3    Artifact             3    60.0    3    4.50     3.0   60    4            50    -10
4    Secret Life          2    57.0    4    4.80     2.0   -     -            -     +0
5    Chericherilady       2    60.0    5    5.50     2.0   66    6            56    -10
6    Without Remorse      2    60.0    6    6.20     2.0   72    6            62    -10
7    Starlite Silk        3    58.5    7    8.20     3.0   -     1            1     +1
8    Delicious Dish       2    57.0    8    13.50    2.0   -     -            -     +0
99   Humaira (IRE)        3    60.0    99   0.00     3.0   -     4            4     +0
99   Lady William         3    60.0    99   0.00     3.0   -     4            4     +0
99   Rendevous In Rio     2    60.0    99   0.00     2.0   -     6            6     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Top Secret - - - - 2.0 -
2 Celtic Manor - - - - 2.0 -
3 Artifact 60 66 50 +16 3.0 -
4 Secret Life Line - - - - 2.0
5 Chericherilady 66 65 56 +9 2.0 -
6 Without Remorse 72 68 62 +6 2.0 -
7 Starlite Silk - - 1 -1 3.0 -
8 Delicious Dish - - - - 2.0 -
99 Humaira (IRE) - - 4 -4 3.0 -
99 Lady William - 59 4 +55 3.0 -
99 Rendevous In Rio - 68 6 +62 2.0 -
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