Official NHA Assessment

Race 5: 4RACING SUN CHARIOT HANDICAP (For Fillies and Mares - Non-Black Type)

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Line Horse
Namaqua Blossom
Reference for assessment
Exact Matches
1 / 7
Calculated = Official
Close Matches
1 / 7
Within 2 points
Significant Diffs
5 / 7
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    United Council       5    59.0    1    0.00     0.0   89    105          89    +0
2    Special Charm        3    56.0    2    0.75     8.0   81    88           88    +7
3    Namaqua Blossom      3    54.5    3    6.00     8.0   80    80           80    +0
4    Opera Glass          4    60.0    4    8.50     4.5   89    98           98    +9
5    Flying First Class   4    57.0    5    8.55     4.5   83    92           92    +9
6    Princess Kesh        3    53.0    6    8.65     8.0   75    77           77    +2
7    Apache Fighter       4    58.5    7    20.00    4.5   86    95           95    +9
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 United Council 89 100 89 +11 0.0 -
2 Special Charm 81 104 88 +16 8.0 -
3 Namaqua Blossom Line 80 75 80 -5 8.0
4 Opera Glass 89 81 98 -17 4.5 -
5 Flying First Class 83 82 92 -10 4.5 -
6 Princess Kesh 75 77 77 ✓ Match 8.0 -
7 Apache Fighter 86 81 95 -14 4.5 -
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