Official NHA Assessment

Race 1: HOLLYWOODBETS DURBANVILLE WELCOMES YOU THREE-YEAR-OLD PLATE (For 3-year-olds)

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Line Horse
Turbo Twenty
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
9 / 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    We Have Touchdown    3    60.0    1    0.00     8.5   -     -14          -     +0
2    Turbo Twenty         2    57.0    2    2.25     0.0   -     -            -     +0
3    Handsome Prince      2    60.0    3    2.55     0.0   -     5            5     +5
4    Rattlesnake          3    60.0    4    4.05     8.5   -     -13          -     +0
5    Bank Street          3    60.0    5    4.55     8.5   -     -14          -     +0
6    Worldly              2    60.0    6    6.80     0.0   -     3            3     +3
7    Pai Mei              2    57.0    7    7.55     0.0   -     -3           -     +0
99   Empire State         3    57.0    99   0.00     8.5   -     -20          -20   +0
99   Surge Of Power       2    60.0    99   0.00     0.0   -     3            3     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 We Have Touchdown - 89 - +89 8.5 -
2 Turbo Twenty Line - 80 - +80 0.0
3 Handsome Prince - 91 5 +86 0.0 -
4 Rattlesnake - 85 - +85 8.5 -
5 Bank Street - 67 - +67 8.5 -
6 Worldly - 78 3 +75 0.0 -
7 Pai Mei - 58 - +58 0.0 -
99 Empire State - 99 -20 +119 8.5 -
99 Surge Of Power - 80 3 +77 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