Official NHA Assessment

Race 7: GREYVILLE CONVENTION CENTRE MR 76 HANDICAP (Open)

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Line Horse
Justaguything
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
6 / 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    Knight Warrior       5    60.5    1    0.00     0.0   77    77           77    +0
2    Father's Frost       7    61.0    2    0.10     0.0   78    78           78    +0
3    Mr Henley            2    60.5    3    1.30     6.5   90    64           80    -10
4    Justaguything        5    59.5    4    1.70     0.0   75    75           75    +0
5    Spy Master           3    56.0    5    2.00     9.5   68    49           58    -10
6    Hooves Of Troy       5    58.0    6    3.30     0.0   77    72           72    -5
7    Life Goes On         7    57.5    7    3.45     0.0   71    71           71    +0
8    Exceed Expectation   3    58.5    8    6.65     9.5   73    54           63    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Knight Warrior 77 74 77 -3 0.0 -
2 Father's Frost 78 62 78 -16 0.0 -
3 Mr Henley 90 82 80 +2 6.5 -
4 Justaguything Line 75 87 75 +12 0.0
5 Spy Master 68 67 58 +9 9.5 -
6 Hooves Of Troy 77 87 72 +15 0.0 -
7 Life Goes On 71 54 71 -17 0.0 -
8 Exceed Expectation 73 52 63 -11 9.5 -
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