Official NHA Assessment

Race 3: 4RACING.TV MIDDLE STAKES (For horses with nett rating of 92 and below)

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Line Horse
The Kop
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
3 / 8
Within 2 points
Significant Diffs
4 / 8
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    Afraad               8    54.5    1    0.00     0.0   76    79           79    +3
2    The Kop              4    58.0    2    3.00     2.0   85    85           85    +0
3    Nartjie              4    58.0    3    3.75     2.0   85    84           84    -1
4    Twin Turbo           4    56.0    4    4.00     2.0   82    80           80    -2
5    Juan Carlos          7    58.0    5    6.00     0.0   86    86           86    +0
6    Flashy Apache        6    54.5    6    7.75     0.0   86    79           79    -7
99   Apollo Robbins       5    52.5    99   0.00     0.0   -     75           75    +0
99   Before Noon          7    60.0    99   0.00     0.0   -     90           90    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Afraad 76 79 79 ✓ Match 0.0 -
2 The Kop Line 85 78 85 -7 2.0
3 Nartjie 85 81 84 -3 2.0 -
4 Twin Turbo 82 88 80 +8 2.0 -
5 Juan Carlos 86 93 86 +7 0.0 -
6 Flashy Apache 86 78 79 -1 0.0 -
99 Apollo Robbins - 69 75 -6 0.0 -
99 Before Noon - 88 90 -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