Official NHA Assessment

Race 1: Hollywoodbets WORK RIDERS' SERIES LEG 2 MAIDEN PLATE (For all Maidens)

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Line Horse
Mrs Shackleton
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
7 / 10
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    Elsinore             3    62.0    1    0.00     6.0   -     61           6     +6
2    Peanut Pops          4    62.0    2    0.20     7.0   61    59           59    -2
3    Mrs Shackleton       2    59.5    3    1.95     4.0   60    60           60    +0
4    Cosmic Cliffs        3    59.5    4    3.20     6.0   -     56           56    +56
5    Fencing Captain      2    62.0    5    4.45     4.0   80    65           70    -10
6    Townsman             3    62.0    6    6.20     6.0   60    61           61    +1
7    Fleur De Ville       3    59.5    7    7.70     6.0   67    56           57    -10
8    Flypast              3    59.5    8    9.70     6.0   -     56           56    +56
9    Lhasa Palace         4    62.0    9    10.45    7.0   -     59           59    +59
10   The Postman          2    62.0    10   13.45    4.0   60    65           65    +5
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Elsinore - 80 6 +74 6.0 -
2 Peanut Pops 61 64 59 +5 7.0 -
3 Mrs Shackleton Line 60 50 60 -10 4.0
4 Cosmic Cliffs - 67 56 +11 6.0 -
5 Fencing Captain 80 76 70 +6 4.0 -
6 Townsman 60 61 61 ✓ Match 6.0 -
7 Fleur De Ville 67 60 57 +3 6.0 -
8 Flypast - 66 56 +10 6.0 -
9 Lhasa Palace - - 59 -59 7.0 -
10 The Postman 60 51 65 -14 4.0 -
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