Official NHA Assessment

Race 5: NOBLE SPECTRE PINNACLE PLATE 105 (Race for all horses.)

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Line Horse
Zazu
Reference for assessment
Exact Matches
0 / 4
Calculated = Official
Close Matches
1 / 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    54.0    1    0.00     0.0   88    86           86    -2
2    Zazu                 6    50.0    2    1.00     0.0   84    84           84    +0
3    Ideal View           6    60.0    3    5.00     0.0   100   98           98    -2
99   Jaeger Moon          7    60.0    99   0.00     0.0   -     98           98    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Citrusdal 88 81 86 -5 0.0 -
2 Zazu Line 84 71 84 -13 0.0
3 Ideal View 100 90 98 -8 0.0 -
99 Jaeger Moon - 97 98 -1 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