Official NHA Assessment

Race 4: JOHNNIE WALKER MR 90 HANDICAP (Open)

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Line Horse
Cheeky Laddie
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
3 / 11
Within 2 points
Significant Diffs
3 / 11
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    Innamorare           5    59.0    1    0.00     0.0   88    83           88    +0
2    Cheeky Laddie        5    58.0    2    0.50     0.0   86    86           86    +0
3    Dowser               5    58.5    3    0.55     0.0   87    87           87    +0
4    Lanciafiamme         3    57.5    4    1.80     1.0   87    81           81    -6
5    Pedro                6    53.5    5    2.30     0.0   77    74           74    -3
6    Anatolian Silver     3    55.0    6    5.30     1.0   80    73           73    -7
7    Master Forester      3    60.5    7    5.40     1.0   93    84           84    -9
8    Holocene             4    54.0    8    5.65     0.5   78    72           72    -6
9    Laguna Verde         5    58.5    9    6.90     0.0   87    82           82    -5
10   Kohana               2    53.5    10   8.40     0.0   79    72           72    -7
11   Brenden James        6    59.5    11   8.50     0.0   89    84           84    -5
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Innamorare 88 91 88 +3 0.0 -
2 Cheeky Laddie Line 86 87 86 +1 0.0
3 Dowser 87 84 87 -3 0.0 -
4 Lanciafiamme 87 102 81 +21 1.0 -
5 Pedro 77 72 74 -2 0.0 -
6 Anatolian Silver 80 78 73 +5 1.0 -
7 Master Forester 93 90 84 +6 1.0 -
8 Holocene 78 76 72 +4 0.5 -
9 Laguna Verde 87 86 82 +4 0.0 -
10 Kohana 79 70 72 -2 0.0 -
11 Brenden James 89 98 84 +14 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