Official NHA Assessment

Race 3: RACING TODAY MR 86 HANDICAP (Open)

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Line Horse
Dowser
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
2 / 7
Within 2 points
Significant Diffs
3 / 7
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    Mr Fox               3    58.5    1    0.00     1.0   85    79           85    +0
2    Dowser               5    60.5    2    3.00     0.0   87    87           87    +0
3    Dynalley             2    57.0    3    3.25     0.0   80    80           80    +0
4    Green Mandarin       5    56.0    4    5.00     0.0   81    76           76    -5
5    Laguna Verde         5    60.5    5    7.25     0.0   87    85           85    -2
6    Sakurajima           3    60.5    6    9.50     1.0   94    83           84    -10
7    Haarlem              3    54.0    7    11.75    1.0   76    70           70    -6
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Mr Fox 85 99 85 +14 1.0 -
2 Dowser Line 87 84 87 -3 0.0
3 Dynalley 80 82 80 +2 0.0 -
4 Green Mandarin 81 83 76 +7 0.0 -
5 Laguna Verde 87 86 85 +1 0.0 -
6 Sakurajima 94 90 84 +6 1.0 -
7 Haarlem 76 73 70 +3 1.0 -
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