Official NHA Assessment

Race 8: WILGERBOSDRIFT PINNACLE STAKES (Open)

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Line Horse
Dave The King
Reference for assessment
Exact Matches
1 / 13
Calculated = Official
Close Matches
4 / 13
Within 2 points
Significant Diffs
6 / 13
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    Unzen                3    52.0    1    0.00     3.0   105   94           94    -11
2    Dave The King        2    62.0    2    3.00     0.0   122   122          122   +0
3    Cousin Casey         2    62.0    3    3.50     0.0   123   121          121   -2
4    Puerto Manzano (ARG  4    62.0    4    4.25     2.0   125   117          117   -8
5    Texas Red            5    50.0    5    4.30     0.0   98    96           96    -2
6    Humdinger            3    56.0    6    7.00     3.0   116   102          106   -10
7    Tulip Tree           2    50.0    7    7.50     0.0   102   96           96    -6
8    Safe Passage         3    58.0    8    8.25     3.0   117   106          107   -10
9    Bingwa               7    60.0    9    8.75     0.0   118   116          116   -2
10   Zuzan                3    50.0    10   9.00     3.0   101   90           91    -10
11   Son Of Raj           5    58.0    11   9.50     0.0   115   112          112   -3
12   Mk's Pride           4    60.0    12   11.25    2.0   118   112          112   -6
13   Savannah Storm       5    52.0    13   11.50    0.0   104   100          100   -4
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Unzen 105 116 94 +22 3.0 -
2 Dave The King Line 122 128 122 +6 0.0
3 Cousin Casey 123 125 121 +4 0.0 -
4 Puerto Manzano (ARG) 125 119 117 +2 2.0 -
5 Texas Red 98 119 96 +23 0.0 -
6 Humdinger 116 119 106 +13 3.0 -
7 Tulip Tree 102 96 96 ✓ Match 0.0 -
8 Safe Passage 117 108 107 +1 3.0 -
9 Bingwa 118 107 116 -9 0.0 -
10 Zuzan 101 98 91 +7 3.0 -
11 Son Of Raj 115 116 112 +4 0.0 -
12 Mk's Pride 118 116 112 +4 2.0 -
13 Savannah Storm 104 102 100 +2 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