Official NHA Assessment

Race 4: WILGERBOSDRIFT CARADOC GOLD CUP (Listed) (Open)

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Line Horse
Aladdin's Lamp
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
4 / 10
Within 2 points
Significant Diffs
5 / 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    Enflame              3    52.0    1    0.00     5.5   98    91           91    -7
2    Aladdin's Lamp       4    56.0    2    5.00     2.0   106   106          106   +0
3    Poets Warrior        5    60.0    3    11.25    0.0   114   118          118   +4
4    Hotarubi             4    54.5    4    11.50    2.0   98    103          103   +5
5    Kissing Machine      3    50.0    5    12.70    5.5   86    87           87    +1
6    Daimyo               3    56.0    6    13.00    5.5   105   99           99    -6
7    Nebraas              8    54.5    7    23.50    0.0   101   107          107   +6
8    Teo Torriatte        4    50.5    8    25.25    2.0   94    95           95    +1
9    Taxhaven             4    52.0    9    25.75    2.0   96    98           98    +2
10   Breeze Over          5    54.0    10   99.99    0.0   99    106          106   +7
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Enflame 98 104 91 +13 5.5 -
2 Aladdin's Lamp Line 106 106 106 ✓ Match 2.0
3 Poets Warrior 114 114 118 -4 0.0 -
4 Hotarubi 98 97 103 -6 2.0 -
5 Kissing Machine 86 88 87 +1 5.5 -
6 Daimyo 105 105 99 +6 5.5 -
7 Nebraas 101 101 107 -6 0.0 -
8 Teo Torriatte 94 94 95 -1 2.0 -
9 Taxhaven 96 96 98 -2 2.0 -
10 Breeze Over 99 99 106 -7 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