Official NHA Assessment

Race 7: GREYVILLE CONVENTION CENTRE MR 87 HANDICAP (Open)

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Line Horse
Full Blast
Reference for assessment
Exact Matches
2 / 10
Calculated = Official
Close Matches
4 / 10
Within 2 points
Significant Diffs
6 / 10
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    Ideal Act            3    60.0    1    0.00     6.0   87    78           87    +0
2    Full Blast           4    59.5    2    0.75     3.5   86    86           86    +0
3    Mr Pigalle           4    55.5    3    1.05     3.5   78    78           78    +0
4    Patronage            4    55.0    4    1.30     3.5   80    76           76    -4
5    Desolate Road        6    59.5    5    2.70     0.0   86    91           91    +5
6    Al's My Daddy        5    57.5    6    2.75     0.0   82    87           87    +5
7    Eddie The Mover      2    53.5    7    3.35     0.0   86    78           78    -8
8    Captain Who          4    56.0    8    3.65     3.5   79    76           76    -3
9    Lord Wylie           7    58.0    9    4.75     0.0   83    86           86    +3
10   Baby Shooz           5    59.0    10   5.80     0.0   85    88           88    +3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Ideal Act 87 86 87 -1 6.0 -
2 Full Blast Line 86 86 86 ✓ Match 3.5
3 Mr Pigalle 78 68 78 -10 3.5 -
4 Patronage 80 76 76 ✓ Match 3.5 -
5 Desolate Road 86 82 91 -9 0.0 -
6 Al's My Daddy 82 70 87 -17 0.0 -
7 Eddie The Mover 86 76 78 -2 0.0 -
8 Captain Who 79 65 76 -11 3.5 -
9 Lord Wylie 83 69 86 -17 0.0 -
10 Baby Shooz 85 73 88 -15 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