Official NHA Assessment

Race 1: 4RACING WELCOMES YOU MAIDEN PLATE (F & M) (For Maiden F & M. R15 000 Win bonus ROA Members)

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Line Horse
Golden Argo
Reference for assessment
Exact Matches
2 / 10
Calculated = Official
Close Matches
3 / 10
Within 2 points
Significant Diffs
6 / 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    Predatrice           3    59.0    1    0.00     8.5   -     59           6     +6
2    Flight Of A Condor   3    56.5    2    0.60     8.5   -     54           54    +54
3    Montana Lights       2    59.0    3    1.50     5.5   -     65           65    +65
4    Bilingual            4    60.0    4    2.80     10.0  60    58           58    -2
5    Golden Argo          3    60.0    5    5.25     8.5   61    61           61    +0
6    Scarlet              3    60.0    6    8.00     8.5   53    61           61    +8
7    Blazing Sky          3    59.0    7    9.30     8.5   -     59           59    +59
8    Lady William         3    59.0    8    11.20    8.5   -     59           59    +59
99   Cyber Spirit         2    59.0    99   0.00     5.5   -     65           65    +0
99   Captains Clover      2    59.0    99   0.00     5.5   -     65           65    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Predatrice - 67 6 +61 8.5 -
2 Flight Of A Condor - 85 54 +31 8.5 -
3 Montana Lights - 78 65 +13 5.5 -
4 Bilingual 60 60 58 +2 10.0 -
5 Golden Argo Line 61 61 61 ✓ Match 8.5
6 Scarlet 53 47 61 -14 8.5 -
7 Blazing Sky - 46 59 -13 8.5 -
8 Lady William - 59 59 ✓ Match 8.5 -
99 Cyber Spirit - 62 65 -3 5.5 -
99 Captains Clover - 54 65 -11 5.5 -
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