Official NHA Assessment

Race 7: GREYVILLE CONVENTION CENTRE CLASS 4 (Open. Benchmark at 60.0kg = 80)

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Line Horse
Fate Of Fortune
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
5 / 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    Wing Walker          3    60.0    1    0.00     1.5   79    78           78    -1
2    Masterbling          3    57.5    2    0.30     1.5   73    73           73    +0
3    Fate Of Fortune      3    53.5    3    1.10     1.5   65    65           65    +0
4    Preemptive Strike    4    58.5    4    1.80     2.0   75    74           74    -1
5    Intrepid             3    60.0    5    2.30     1.5   78    78           78    +0
6    The Mask             2    53.0    6    3.60     0.5   73    66           66    -7
7    River Dance          3    56.0    7    6.60     1.5   71    70           70    -1
8    Boom Shakalaka       2    53.0    8    9.90     0.5   73    66           66    -7
99   Definitely Yes       2    59.5    99   0.00     0.5   -     79           79    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Wing Walker 79 87 78 +9 1.5 -
2 Masterbling 73 74 73 +1 1.5 -
3 Fate Of Fortune Line 65 77 65 +12 1.5
4 Preemptive Strike 75 70 74 -4 2.0 -
5 Intrepid 78 73 78 -5 1.5 -
6 The Mask 73 84 66 +18 0.5 -
7 River Dance 71 68 70 -2 1.5 -
8 Boom Shakalaka 73 57 66 -9 0.5 -
99 Definitely Yes - 71 79 -8 0.5 -
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