Official NHA Assessment

Race 2: OFF THE RAILS MAIDEN PLATE (F & M) (For Maiden Fillies & Mares)

Line Horse
Madame Zee
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
6 / 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    Le Premiere          4    58.0    1    0.00     11.0  -     57           6     +6
2    Madame Zee           3    60.0    2    0.90     9.5   64    64           64    +0
3    Mad World            3    58.0    3    5.80     9.5   -     60           60    +60
4    Keenonkelly          2    56.0    4    6.85     6.5   65    62           62    -3
5    Foreign Lady         3    60.0    5    7.25     9.5   62    64           64    +2
6    Tropical Breeze      3    60.0    6    8.55     9.5   56    64           64    +8
7    County Kildare       4    56.0    7    8.60     11.0  56    53           53    -3
8    Ribbons 'N Flags     3    56.5    8    9.10     9.5   -     57           57    +57
9    Sumiko               2    54.0    9    10.70    6.5   70    58           60    -10
10   Hurricane Flight     3    58.0    10   20.40    9.5   -     60           60    +60
99   When Evening Comes   5    60.0    99   0.00     0.0   -     83           83    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Le Premiere - 84 6 +78 11.0 -
2 Madame Zee Line 64 69 64 +5 9.5
3 Mad World - 53 60 -7 9.5 -
4 Keenonkelly 65 53 62 -9 6.5 -
5 Foreign Lady 62 60 64 -4 9.5 -
6 Tropical Breeze 56 50 64 -14 9.5 -
7 County Kildare 56 52 53 -1 11.0 -
8 Ribbons 'N Flags - 55 57 -2 9.5 -
9 Sumiko 70 53 60 -7 6.5 -
10 Hurricane Flight - 55 60 -5 9.5 -
99 When Evening Comes - 58 83 -25 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