Official NHA Assessment

Race 3: GREYVILLE CONVENTION CENTRE FM 66 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Shaken Not Stirred
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
4 / 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    Rain Wear            4    61.0    1    0.00     7.0   68    66           68    +0
2    Shaken Not Stirred   4    56.0    2    2.30     7.0   58    58           58    +0
3    Rowins Dream         5    60.0    3    3.70     0.0   67    79           79    +12
4    English Primrose     3    53.5    4    4.30     9.0   53    47           47    -6
5    Saturn Moon          2    59.0    5    5.10     0.0   68    76           76    +8
6    Maggie Tee           3    56.5    6    7.90     9.0   60    53           53    -7
7    Gelsomina            3    55.5    7    9.20     9.0   57    51           51    -6
99   Queen Bomi           4    58.0    99   0.00     7.0   -     60           60    +0
99   Forged In Ice        3    52.0    99   0.00     9.0   -     44           44    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Rain Wear 68 73 68 +5 7.0 -
2 Shaken Not Stirred Line 58 55 58 -3 7.0
3 Rowins Dream 67 48 79 -31 0.0 -
4 English Primrose 53 58 47 +11 9.0 -
5 Saturn Moon 68 57 76 -19 0.0 -
6 Maggie Tee 60 55 53 +2 9.0 -
7 Gelsomina 57 55 51 +4 9.0 -
99 Queen Bomi - 58 60 -2 7.0 -
99 Forged In Ice - 57 44 +13 9.0 -
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