Official NHA Assessment

Race 6: GREYVILLE CONVENTION CENTRE CLASS 5 (Open. Benchmark at 60.0kg = 66)

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Line Horse
Gorgeous Dude
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
2 / 8
Within 2 points
Significant Diffs
5 / 8
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    Pongola              5    59.5    1    0.00     0.0   65    64           64    -1
2    Fireburst            3    61.5    2    0.05     2.5   74    63           64    -10
3    Gorgeous Dude        4    54.0    3    2.05     1.0   54    54           54    +0
4    Eventidor            6    61.5    4    2.75     0.0   69    70           70    +1
5    Mac Hardy            4    57.5    5    2.90     1.0   61    60           60    -1
6    Querari's Dream      2    58.0    6    4.80     0.0   70    61           61    -9
7    Porfirio             6    61.0    7    5.30     0.0   68    67           67    -1
8    Richardthefearless   3    61.0    8    7.60     2.5   68    62           62    -6
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Pongola 65 66 64 +2 0.0 -
2 Fireburst 74 80 64 +16 2.5 -
3 Gorgeous Dude Line 54 55 54 +1 1.0
4 Eventidor 69 89 70 +19 0.0 -
5 Mac Hardy 61 64 60 +4 1.0 -
6 Querari's Dream 70 70 61 +9 0.0 -
7 Porfirio 68 88 67 +21 0.0 -
8 Richardthefearless 68 83 62 +21 2.5 -
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