Official NHA Assessment

Race 6: www.galloptv.co.za CLASS 4 (F & M) (For Fillies & Mares. Benchmark at 60.0kg = 82)

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Line Horse
Grand Occasion
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
1 / 11
Within 2 points
Significant Diffs
8 / 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    Rahhabba             3    57.0    1    0.00     7.0   76    59           59    -17
2    Grand Occasion       2    59.0    2    2.10     0.0   80    80           80    +0
3    Hearts On Fire       3    51.0    3    4.60     7.0   72    47           62    -10
4    Zena Rose            3    56.0    4    5.50     7.0   74    57           64    -10
5    Rani Tarabai         3    60.0    5    5.80     7.0   82    65           72    -10
6    Radu                 5    52.0    6    7.00     0.0   69    63           63    -6
7    Cape Lights          5    60.5    7    9.00     0.0   83    80           80    -3
8    K M V Retrofit       3    53.0    8    9.05     7.0   73    51           63    -10
9    Sally Port           2    52.0    9    10.75    0.0   79    63           69    -10
10   Bella Valentina      3    55.0    10   12.95    7.0   85    55           75    -10
99   Gorgeous Girl        4    50.5    99   0.00     4.0   -     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 Rahhabba 76 89 59 +30 7.0 -
2 Grand Occasion Line 80 85 80 +5 0.0
3 Hearts On Fire 72 65 62 +3 7.0 -
4 Zena Rose 74 73 64 +9 7.0 -
5 Rani Tarabai 82 80 72 +8 7.0 -
6 Radu 69 64 63 +1 0.0 -
7 Cape Lights 83 74 80 -6 0.0 -
8 K M V Retrofit 73 69 63 +6 7.0 -
9 Sally Port 79 79 69 +10 0.0 -
10 Bella Valentina 85 81 75 +6 7.0 -
99 Gorgeous Girl - 74 52 +22 4.0 -
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