Official NHA Assessment

Race 7: CENTENARY CLUB D STAKES (For All Horses)

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Line Horse
The Night Ferry
Reference for assessment
Exact Matches
1 / 7
Calculated = Official
Close Matches
4 / 7
Within 2 points
Significant Diffs
3 / 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    Devil A Saint        4    61.5    1    0.00     3.0   65    68           68    +3
2    The Night Ferry      3    60.0    2    1.00     6.0   63    63           63    +0
3    Gold Index           3    51.5    3    1.30     6.0   53    45           45    -8
4    Mela Strength        3    60.0    4    3.05     6.0   63    61           61    -2
5    Avignon              4    57.0    5    3.25     3.0   56    61           61    +5
6    Disruptive           2    50.0    6    11.25    0.0   54    51           51    -3
99   Nomore Bullets       2    56.0    99   0.00     0.0   -     63           63    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Devil A Saint 65 69 68 +1 3.0 -
2 The Night Ferry Line 63 62 63 -1 6.0
3 Gold Index 53 53 45 +8 6.0 -
4 Mela Strength 63 63 61 +2 6.0 -
5 Avignon 56 61 61 ✓ Match 3.0 -
6 Disruptive 54 69 51 +18 0.0 -
99 Nomore Bullets - 73 63 +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