Official NHA Assessment

Race 7: THE JULY IN CHRISTMAS MILE CLASS 4 (Open. Benchmark at 60.0kg = 82)

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Line Horse
Lucky Dollar
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
3 / 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    Down By The River    2    57.5    1    0.00     0.0   77    75           75    -2
2    Lucky Dollar         2    61.5    2    2.50     0.0   85    85           85    +0
2    Royal Sword          2    53.5    2    2.50     0.0   81    69           71    -10
4    Targaryen Knight     2    52.5    4    3.20     0.0   82    67           72    -10
5    Turbo Twenty         2    59.0    5    4.60     0.0   80    78           78    -2
6    Sign Of Fate         4    54.5    6    5.50     3.0   79    63           69    -10
7    Ingqwele             3    58.5    7    6.00     6.0   79    65           69    -10
8    Teatime Tipple       2    54.0    8    8.80     0.0   70    68           68    -2
99   Sweeper Keeper       4    51.0    99   0.00     3.0   -     56           56    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Down By The River 77 95 75 +20 0.0 -
2 Lucky Dollar Line 85 85 85 ✓ Match 0.0
2 Royal Sword 81 87 71 +16 0.0 -
4 Targaryen Knight 82 78 72 +6 0.0 -
5 Turbo Twenty 80 80 78 +2 0.0 -
6 Sign Of Fate 79 74 69 +5 3.0 -
7 Ingqwele 79 84 69 +15 6.0 -
8 Teatime Tipple 70 69 68 +1 0.0 -
99 Sweeper Keeper - 67 56 +11 3.0 -
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