Official NHA Assessment

Race 6: TAB.CO.ZA MR 86 HANDICAP (Open)

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Line Horse
Jordan
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
1 / 7
Within 2 points
Significant Diffs
6 / 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    Douglas Dragon       3    57.0    1    0.00     8.0   83    71           83    +0
2    Jordan               4    60.0    2    4.00     4.5   86    86           86    +0
3    Titans Of War        2    53.5    3    5.50     0.0   89    80           80    -9
4    Arlington Action     6    55.0    4    6.75     0.0   76    83           83    +7
5    Chabal               3    51.0    5    8.25     8.0   75    59           65    -10
6    Corrupt              2    59.0    6    9.75     0.0   86    91           91    +5
7    Dual Prophecy        3    56.5    7    16.25    8.0   79    70           70    -9
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Douglas Dragon 83 89 83 +6 8.0 -
2 Jordan Line 86 88 86 +2 4.5
3 Titans Of War 89 91 80 +11 0.0 -
4 Arlington Action 76 73 83 -10 0.0 -
5 Chabal 75 73 65 +8 8.0 -
6 Corrupt 86 82 91 -9 0.0 -
7 Dual Prophecy 79 79 70 +9 8.0 -
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