Official NHA Assessment

Race 4: GREYVILLE CONVENTION CENTRE MAIDEN PLATE (For all Maidens)

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Line Horse
None identified
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
3 / 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    Salt 'N Peppa        2    57.0    1    0.00     1.0   -     -            -     +0
2    Record High          3    57.0    2    1.70     2.0   -     -            -     +0
3    Amor Fati            2    57.0    3    3.30     1.0   -     -            -     +0
4    Kinnikinnik          2    57.0    4    5.90     1.0   -     -            -     +0
5    Turn Around          2    57.0    5    6.30     1.0   -     -            -     +0
6    Catavar              4    60.0    6    9.60     2.5   71    -            66    -5
7    Railroad             2    58.5    7    13.40    1.0   68    -            62    -6
8    Cannatonic           3    60.0    8    13.70    2.0   53    -            46    -7
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Salt 'N Peppa - 87 - +87 1.0 -
2 Record High - 71 - +71 2.0 -
3 Amor Fati - 92 - +92 1.0 -
4 Kinnikinnik - 73 - +73 1.0 -
5 Turn Around - 79 - +79 1.0 -
6 Catavar 71 64 66 -2 2.5 -
7 Railroad 68 60 62 -2 1.0 -
8 Cannatonic 53 48 46 +2 2.0 -
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