Official NHA Assessment

Race 4: INTERBET OPEN MAIDEN (F & M) (For all Maiden Fillies & Mares.)

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Line Horse
Special Glamour
Reference for assessment
Exact Matches
1 / 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    Meg's Legacy         3    57.5    1    0.00     1.0   62    59           59    -3
2    Special Glamour      3    60.0    2    1.75     1.0   67    67           67    +0
3    Red Coral            2    57.0    3    3.00     0.0   -     62           62    +62
4    Taylor's Version     2    56.0    4    3.20     0.0   -     60           60    +60
5    Red State            3    59.0    5    4.45     1.0   65    62           62    -3
6    Miss Mackie          3    55.0    6    5.70     1.0   57    54           54    -3
7    See The Sign         3    51.5    7    5.90     1.0   50    47           47    -3
8    Lady Of Fate         3    51.0    8    6.40     1.0   50    46           46    -4
9    Hay Fever            2    55.0    9    6.50     0.0   57    56           56    -1
10   Larking About        3    58.0    10   10.75    1.0   62    60           60    -2
99   Dibble               3    60.0    99   0.00     1.0   -     64           64    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Meg's Legacy 62 70 59 +11 1.0 -
2 Special Glamour Line 67 67 67 ✓ Match 1.0
3 Red Coral - 70 62 +8 0.0 -
4 Taylor's Version - 72 60 +12 0.0 -
5 Red State 65 65 62 +3 1.0 -
6 Miss Mackie 57 49 54 -5 1.0 -
7 See The Sign 50 54 47 +7 1.0 -
8 Lady Of Fate 50 52 46 +6 1.0 -
9 Hay Fever 57 54 56 -2 0.0 -
10 Larking About 62 55 60 -5 1.0 -
99 Dibble - 44 64 -20 1.0 -
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