Official NHA Assessment

Race 5: RACEHORSE OWNERS ASSOCIATION MR 96 HANDICAP (Open)

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Line Horse
Goliath Heron
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
5 / 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    Rollwiththepunches   6    56.0    1    0.00     0.0   90    88           90    +0
2    Val d'Orcia          3    61.0    2    1.25     2.0   105   94           95    -10
3    Goliath Heron        6    57.0    3    2.50     0.0   90    90           90    +0
4    Spanish Boy          5    55.5    4    3.25     0.0   87    87           87    +0
5    Tuscan Winter        4    55.0    5    6.00     2.5   86    81           81    -5
6    Dockofthebay         3    57.0    6    6.50     2.0   92    86           86    -6
7    Burning Wings        4    56.5    7    7.75     2.5   89    84           84    -5
8    Whorly Whorly        7    61.5    8    8.25     0.0   99    99           99    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Rollwiththepunches 90 90 90 ✓ Match 0.0 -
2 Val d'Orcia 105 105 95 +10 2.0 -
3 Goliath Heron Line 90 86 90 -4 0.0
4 Spanish Boy 87 84 87 -3 0.0 -
5 Tuscan Winter 86 90 81 +9 2.5 -
6 Dockofthebay 92 71 86 -15 2.0 -
7 Burning Wings 89 64 84 -20 2.5 -
8 Whorly Whorly 99 78 99 -21 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