Official NHA Assessment

Race 5: CFAO WEIGHTS FOR AGE (WEIGHT-FOR-AGE)

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Line Horse
Holy Land
Reference for assessment
Exact Matches
1 / 5
Calculated = Official
Close Matches
2 / 5
Within 2 points
Significant Diffs
2 / 5
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    Abayyaan             3    60.0    1    0.00     1.0   98    93           93    -5
2    Jet Mirage           3    60.0    2    2.50     1.0   107   95           97    -10
3    Holy Land            6    60.0    3    3.00     0.0   97    97           97    +0
4    Wantage              8    60.0    4    4.25     0.0   92    96           96    +4
5    Raffles              2    60.0    5    7.25     0.0   106   95           96    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Abayyaan 98 94 93 +1 1.0 -
2 Jet Mirage 107 100 97 +3 1.0 -
3 Holy Land Line 97 97 97 ✓ Match 0.0
4 Wantage 92 78 96 -18 0.0 -
5 Raffles 106 105 96 +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