Official NHA Assessment

Race 4: CAPE TURF CLUB SYNDICATES CLASS 4 (F & M) (For Fillies & Mares. Benchmark at 60.0kg = 78)

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Line Horse
Philosophise
Reference for assessment
Exact Matches
2 / 9
Calculated = Official
Close Matches
4 / 9
Within 2 points
Significant Diffs
3 / 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    Enchanting Choice    4    57.5    1    0.00     1.5   79    67           67    -12
2    Philosophise         5    61.5    2    1.50     0.0   81    81           81    +0
3    Hampstead Heath      4    57.5    3    3.75     1.5   79    68           69    -10
4    Queen Bomi           4    53.0    4    5.25     1.5   64    58           58    -6
5    Ilha Da Mauricia     3    56.0    5    6.25     3.0   70    61           61    -9
6    Tokyo Princess       2    57.5    6    6.30     0.0   79    70           70    -9
7    Evening Primrose     3    62.0    7    8.80     3.0   82    73           73    -9
8    Red Moon Rising      2    56.5    8    11.05    0.0   77    68           68    -9
9    Golden Corn          2    57.5    9    17.30    0.0   79    70           70    -9
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Enchanting Choice 79 99 67 +32 1.5 -
2 Philosophise Line 81 80 81 -1 0.0
3 Hampstead Heath 79 75 69 +6 1.5 -
4 Queen Bomi 64 58 58 ✓ Match 1.5 -
5 Ilha Da Mauricia 70 63 61 +2 3.0 -
6 Tokyo Princess 79 67 70 -3 0.0 -
7 Evening Primrose 82 77 73 +4 3.0 -
8 Red Moon Rising 77 68 68 ✓ Match 0.0 -
9 Golden Corn 79 60 70 -10 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