Official NHA Assessment

Race 3: RACING 240 MR 85 HANDICAP (Open)

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Line Horse
Captain Dizzy
Reference for assessment
Exact Matches
2 / 11
Calculated = Official
Close Matches
3 / 11
Within 2 points
Significant Diffs
6 / 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    Double Charge        5    57.5    1    0.00     0.0   80    92           80    +0
2    Captain Dizzy        4    57.0    2    1.25     6.0   79    79           79    +0
3    Ravensthorpe         3    56.5    3    1.50     5.0   85    80           80    -5
4    Persistance          3    52.5    4    2.70     5.0   77    72           72    -5
5    Kalahari Ferrari     3    60.0    5    2.90     5.0   92    87           87    -5
6    Transact             3    56.5    6    3.40     5.0   85    80           80    -5
7    Baltimore Jack       5    55.0    7    3.60     0.0   75    87           87    +12
8    Fighter              5    54.0    8    4.85     0.0   73    85           85    +12
9    What A Bolt          3    53.0    9    6.85     5.0   78    73           73    -5
10   Winter Mosaic        3    58.5    10   8.35     5.0   92    84           84    -8
11   Bonanza              3    54.5    11   11.60    5.0   81    76           76    -5
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Double Charge 80 80 80 ✓ Match 0.0 -
2 Captain Dizzy Line 79 96 79 +17 6.0
3 Ravensthorpe 85 75 80 -5 5.0 -
4 Persistance 77 50 72 -22 5.0 -
5 Kalahari Ferrari 92 87 87 ✓ Match 5.0 -
6 Transact 85 77 80 -3 5.0 -
7 Baltimore Jack 75 72 87 -15 0.0 -
8 Fighter 73 69 85 -16 0.0 -
9 What A Bolt 78 72 73 -1 5.0 -
10 Winter Mosaic 92 94 84 +10 5.0 -
11 Bonanza 81 57 76 -19 5.0 -
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