Official NHA Assessment

Race 8: CATCH LADY DU 25 NOVEMBER MR 101 HANDICAP (Open)

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Line Horse
Aussenkehr
Reference for assessment
Exact Matches
2 / 10
Calculated = Official
Close Matches
4 / 10
Within 2 points
Significant Diffs
4 / 10
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    Val d'Orcia          3    60.0    1    0.00     7.5   101   96           101   +0
2    Tulip Tree           2    57.5    2    0.05     5.0   99    96           96    -3
3    Aussenkehr           2    60.0    3    1.75     5.0   101   101          101   +0
4    Paisley Park         4    59.0    4    1.95     9.0   99    91           91    -8
5    Black Egret          3    58.0    5    2.00     7.5   97    92           92    -5
6    Argo Alley           2    56.5    6    4.25     5.0   94    94           94    +0
7    Midnight Gem         4    56.0    7    4.30     9.0   93    85           85    -8
8    Bold Act             3    58.5    8    5.00     7.5   98    93           93    -5
9    Power Broker         2    51.0    9    5.25     5.0   91    83           83    -8
10   Super Awesome        4    52.0    10   15.50    9.0   91    77           81    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Val d'Orcia 101 105 101 +4 7.5 -
2 Tulip Tree 99 96 96 ✓ Match 5.0 -
3 Aussenkehr Line 101 79 101 -22 5.0
4 Paisley Park 99 91 91 ✓ Match 9.0 -
5 Black Egret 97 90 92 -2 7.5 -
6 Argo Alley 94 110 94 +16 5.0 -
7 Midnight Gem 93 81 85 -4 9.0 -
8 Bold Act 98 77 93 -16 7.5 -
9 Power Broker 91 102 83 +19 5.0 -
10 Super Awesome 91 79 81 -2 9.0 -
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