Official NHA Assessment

Race 6: GREYVILLE CONVENTION CENTRE FM 67 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Her Royal Majesty
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
6 / 9
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    Magicallee           4    50.0    1    0.00     5.0   52    37           52    +0
2    Her Royal Majesty    5    62.0    2    0.50     0.0   71    71           71    +0
3    Arianos Spinner      5    55.0    3    0.75     0.0   57    57           57    +0
4    Dunyaa (AUS)         4    62.0    4    1.25     5.0   71    61           61    -10
5    Gimme A Lullaby      3    58.5    5    1.50     4.5   70    55           60    -10
6    Luna Eclipse         4    58.5    6    2.60     5.0   67    54           57    -10
7    Shield Maiden        3    59.0    7    4.00     4.5   71    56           61    -10
8    My Elouise           3    59.0    8    4.40     4.5   71    56           61    -10
99   Miss Magician        3    61.0    99   0.00     4.5   -     60           60    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Magicallee 52 65 52 +13 5.0 -
2 Her Royal Majesty Line 71 64 71 -7 0.0
3 Arianos Spinner 57 51 57 -6 0.0 -
4 Dunyaa (AUS) 71 71 61 +10 5.0 -
5 Gimme A Lullaby 70 59 60 -1 4.5 -
6 Luna Eclipse 67 78 57 +21 5.0 -
7 Shield Maiden 71 63 61 +2 4.5 -
8 My Elouise 71 57 61 -4 4.5 -
99 Miss Magician - 68 60 +8 4.5 -
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