Official NHA Assessment

Race 8: JONSSON WORKWEAR CLASS 4 (Open. Benchmark at 60.0kg = 82)

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Line Horse
Delta Pride
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
4 / 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    Touched By Angels    3    60.0    1    0.00     5.0   92    80           80    -12
2    Gran Canaria         3    57.0    2    1.50     5.0   76    77           77    +1
3    Delta Pride          2    59.0    3    2.50     0.0   90    90           90    +0
4    United Front         2    58.0    4    3.25     0.0   88    88           88    +0
5    Scottish Links       2    56.0    5    4.25     0.0   74    83           83    +9
6    Flying Finley        3    61.5    6    4.65     5.0   85    83           83    -2
7    Nevada King          2    59.0    7    7.15     0.0   80    88           88    +8
8    Objet D' Art         2    58.0    8    14.15    0.0   88    86           86    -2
9    Mexican Pete         3    61.0    9    15.90    5.0   84    82           82    -2
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Touched By Angels 92 97 80 +17 5.0 -
2 Gran Canaria 76 77 77 ✓ Match 5.0 -
3 Delta Pride Line 90 86 90 -4 0.0
4 United Front 88 82 88 -6 0.0 -
5 Scottish Links 74 70 83 -13 0.0 -
6 Flying Finley 85 88 83 +5 5.0 -
7 Nevada King 80 80 88 -8 0.0 -
8 Objet D' Art 88 89 86 +3 0.0 -
9 Mexican Pete 84 84 82 +2 5.0 -
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