Official NHA Assessment

Race 5: MERIT RATED 90 HANDICAP (Open)

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Line Horse
Dindingwe
Reference for assessment
Exact Matches
0 / 4
Calculated = Official
Close Matches
0 / 4
Within 2 points
Significant Diffs
2 / 4
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    Citrusdal            8    58.0    1    0.00     0.0   86    89           86    +0
2    Dindingwe            4    60.5    2    3.50     3.0   91    91           91    +0
3    Bugatti Blue         7    60.0    3    4.50     0.0   90    94           94    +4
4    Obscure              4    54.0    4    7.50     3.0   78    75           75    -3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Citrusdal 86 81 86 -5 0.0 -
2 Dindingwe Line 91 95 91 +4 3.0
3 Bugatti Blue 90 87 94 -7 0.0 -
4 Obscure 78 87 75 +12 3.0 -
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