Official NHA Assessment

Race 7: PERFECTLY PLACED MIDDLE STAKES (F & M) (For Fillies and Mares with a nett rating of 102 & below)

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Line Horse
Winter Rainfall
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
1 / 11
Within 2 points
Significant Diffs
9 / 11
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    Pineapplemintgreen   2    54.0    1    0.00     2.0   85    89           89    +4
2    Southern Skies       3    55.5    2    1.50     3.0   83    90           90    +7
3    Winter Rainfall      4    58.5    3    1.70     3.5   95    95           95    +0
4    Porque Te Vas        5    57.0    4    2.20     0.0   88    99           99    +11
5    Knockout             2    55.5    5    2.95     2.0   89    92           92    +3
6    Oni San              2    58.5    6    4.20     2.0   97    98           98    +1
7    Kinky Boots          3    55.5    7    4.40     3.0   83    90           90    +7
8    Distinction          2    58.5    8    4.60     2.0   93    98           98    +5
9    Miss Marguerite      5    60.0    9    5.35     0.0   97    105          105   +8
10   Lady Look Alike      4    55.5    10   5.45     3.5   88    89           89    +1
11   Kythera              2    55.5    11   5.85     2.0   90    92           92    +2
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Pineapplemintgreen 85 95 89 +6 2.0 -
2 Southern Skies 83 97 90 +7 3.0 -
3 Winter Rainfall Line 95 87 95 -8 3.5
4 Porque Te Vas 88 78 99 -21 0.0 -
5 Knockout 89 101 92 +9 2.0 -
6 Oni San 97 78 98 -20 2.0 -
7 Kinky Boots 83 74 90 -16 3.0 -
8 Distinction 93 97 98 -1 2.0 -
9 Miss Marguerite 97 91 105 -14 0.0 -
10 Lady Look Alike 88 77 89 -12 3.5 -
11 Kythera 90 87 92 -5 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