Official NHA Assessment

Race 6: GREYVILLE CONVENTION CENTRE CLASS 3 (F & M) (For Fillies & Mares. Benchmark at 60.0kg = 96)

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Line Horse
Two G's
Reference for assessment
Exact Matches
3 / 8
Calculated = Official
Close Matches
4 / 8
Within 2 points
Significant Diffs
4 / 8
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    Malcolm's Dream      6    56.0    1    0.00     0.0   85    87           87    +2
2    Two G's              3    56.5    2    1.40     1.0   89    89           89    +0
3    Magical View         3    60.0    3    1.45     1.0   96    96           96    +0
4    Goodnessgraciousme   2    57.5    4    1.75     0.0   91    93           93    +2
5    Spirit Of Levana     3    55.0    5    2.35     1.0   94    85           85    -9
6    African Beat         4    57.5    6    2.40     0.5   88    91           91    +3
7    Littleblackvelvet    4    51.5    7    6.90     0.5   84    77           77    -7
99   School Policy        2    55.5    99   0.00     0.0   -     86           86    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Malcolm's Dream 85 88 87 +1 0.0 -
2 Two G's Line 89 89 89 ✓ Match 1.0
3 Magical View 96 88 96 -8 1.0 -
4 Goodnessgraciousme 91 86 93 -7 0.0 -
5 Spirit Of Levana 94 73 85 -12 1.0 -
6 African Beat 88 91 91 ✓ Match 0.5 -
7 Littleblackvelvet 84 77 77 ✓ Match 0.5 -
99 School Policy - 79 86 -7 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