Official NHA Assessment

Race 1: WELCOME TO Hollywoodbets GREYVILLE MAIDEN PLATE (For all Maidens)

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Line Horse
The Marquee
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
8 / 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    The Marquee          3    58.0    1    0.00     6.0   -     -            -     +0
2    Greatest Hit         3    58.0    2    0.25     6.0   -     -            -     +0
3    Stampede Ahead       2    55.0    3    0.95     0.0   -     10           10    +10
4    Christmas Cactus     3    54.0    4    3.05     6.0   -     -6           -     +0
5    Son Of Rafeef        3    58.0    5    3.65     6.0   -     1            1     +1
6    Boss Of Bosses       3    58.0    6    4.25     6.0   -     1            1     +1
7    Bourne Supremacy     2    58.0    7    6.35     0.0   80    12           70    -10
8    Owner Of Creation    3    60.0    8    8.05     6.0   57    4            47    -10
99   Naval Officer        4    60.0    99   0.00     3.5   -     9            9     +0
99   Hadrian's Wall       3    58.0    99   0.00     6.0   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 The Marquee Line - 85 - +85 6.0
2 Greatest Hit - 84 - +84 6.0 -
3 Stampede Ahead - 76 10 +66 0.0 -
4 Christmas Cactus - 77 - +77 6.0 -
5 Son Of Rafeef - 87 1 +86 6.0 -
6 Boss Of Bosses - - 1 -1 6.0 -
7 Bourne Supremacy 80 78 70 +8 0.0 -
8 Owner Of Creation 57 65 47 +18 6.0 -
99 Naval Officer - - 9 -9 3.5 -
99 Hadrian's Wall - - - - 6.0 -
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