Official NHA Assessment

Race 8: www.galloptv.co.za CLASS 5 (F & M) (For Fillies & Mares. Benchmark at 60.0kg = 66)

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Line Horse
Copacabana
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
3 / 9
Within 2 points
Significant Diffs
6 / 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    Ilha Da Orange       4    59.0    1    0.00     0.0   64    64           64    +0
2    On Board             3    61.5    2    2.20     2.5   69    64           64    -5
3    Copacabana           4    56.0    3    2.90     0.0   58    58           58    +0
4    Dynasty's Last       5    52.0    4    4.10     0.0   50    50           50    +0
5    Cape Capri           2    53.0    5    7.10     1.5   63    49           53    -10
6    Drive By             6    62.0    6    8.80     0.0   70    70           70    +0
7    Quentasia            4    50.5    7    9.05     0.0   55    47           47    -8
8    Blush Of Dawn        8    59.0    8    11.55    0.0   64    64           64    +0
99   Chicago Lass         6    53.0    99   0.00     0.0   -     52           52    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Ilha Da Orange 64 75 64 +11 0.0 -
2 On Board 69 66 64 +2 2.5 -
3 Copacabana Line 58 74 58 +16 0.0
4 Dynasty's Last 50 61 50 +11 0.0 -
5 Cape Capri 63 63 53 +10 1.5 -
6 Drive By 70 68 70 -2 0.0 -
7 Quentasia 55 58 47 +11 0.0 -
8 Blush Of Dawn 64 64 64 ✓ Match 0.0 -
99 Chicago Lass - 43 52 -9 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