Official NHA Assessment

Race 2: RACING240 OPEN MAIDEN (For all Maidens)

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Line Horse
Pibe De Oro
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
5 / 11
Within 2 points
Significant Diffs
4 / 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    Stand Up             3    56.0    1    0.00     8.0   63    60           60    -3
2    Pilgrim              2    52.0    2    2.00     0.0   62    71           71    +9
3    Pibe De Oro          3    58.5    3    2.05     8.0   68    68           68    +0
4    Top Dollar           5    49.5    4    2.55     0.0   50    65           65    +15
5    Aethelwulf           2    52.0    5    2.65     0.0   70    70           70    +0
6    Nuclear Power        2    49.5    6    3.65     0.0   70    64           64    -6
7    Dinero               4    53.0    7    6.65     5.0   55    60           60    +5
8    Fire Tiger           3    53.0    8    7.40     8.0   57    54           54    -3
99   Two For The Boys     3    61.0    99   0.00     8.0   -     70           70    +0
99   Grey Warrior         2    53.5    99   0.00     0.0   -     71           71    +0
99   Prolific Star        3    57.0    99   0.00     8.0   -     62           62    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Stand Up 63 62 60 +2 8.0 -
2 Pilgrim 62 62 71 -9 0.0 -
3 Pibe De Oro Line 68 66 68 -2 8.0
4 Top Dollar 50 42 65 -23 0.0 -
5 Aethelwulf 70 66 70 -4 0.0 -
6 Nuclear Power 70 60 64 -4 0.0 -
7 Dinero 55 51 60 -9 5.0 -
8 Fire Tiger 57 54 54 ✓ Match 8.0 -
99 Two For The Boys - 61 70 -9 8.0 -
99 Grey Warrior - 70 71 -1 0.0 -
99 Prolific Star - 64 62 +2 8.0 -
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