Official NHA Assessment

Race 7: KINGS CUP (Listed) (For all Horses)

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Line Horse
Narina Trogon
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
2 / 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    Winter Games         4    51.5    1    0.00     1.5   91    88           88    -3
2    Gladatorian          5    62.0    2    0.20     0.0   123   112          113   -10
3    Diani                5    56.0    3    0.70     0.0   101   105          105   +4
4    Narina Trogon        5    57.5    4    1.75     0.0   106   106          106   +0
5    Perilla              5    52.0    5    3.15     0.0   99    94           94    -5
6    Miss Platina         4    50.5    6    5.05     1.5   96    86           86    -10
7    Cherry Ano           5    60.5    7    7.65     0.0   111   109          109   -2
8    Madison Valley       4    62.0    8    7.80     1.5   117   109          109   -8
99   Formagear            5    59.0    99   0.00     0.0   -     106          106   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Winter Games 91 103 88 +15 1.5 -
2 Gladatorian 123 127 113 +14 0.0 -
3 Diani 101 96 105 -9 0.0 -
4 Narina Trogon Line 106 102 106 -4 0.0
5 Perilla 99 89 94 -5 0.0 -
6 Miss Platina 96 92 86 +6 1.5 -
7 Cherry Ano 111 108 109 -1 0.0 -
8 Madison Valley 117 116 109 +7 1.5 -
99 Formagear - 108 106 +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