Official NHA Assessment

Race 6: WSB MET 25 JANUARY MIDDLE STAKES (For horses with nett rating of 105 and below)

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Line Horse
King Of Venus
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
2 / 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    Passage Of Power     6    52.5    1    0.00     0.0   89    99           95    +6
2    Tchaikovsky          6    50.0    2    2.25     0.0   80    94           94    +14
3    King Of Venus        4    54.0    3    3.05     7.0   88    88           88    +0
4    One Fell Swoop       2    60.5    4    3.80     4.0   103   107          107   +4
5    Dreamland            4    62.0    5    4.10     7.0   105   104          104   -1
6    Nkandla Gold         4    52.0    6    4.15     7.0   84    84           84    +0
7    Smith And Wesson     2    50.0    7    5.00     4.0   78    86           86    +8
8    Swing Upon A Star    2    60.5    8    6.20     4.0   102   107          107   +5
9    Midnight Gem         4    52.5    9    7.20     7.0   87    85           85    -2
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Passage Of Power 89 76 95 -19 0.0 -
2 Tchaikovsky 80 81 94 -13 0.0 -
3 King Of Venus Line 88 87 88 -1 7.0
4 One Fell Swoop 103 97 107 -10 4.0 -
5 Dreamland 105 103 104 -1 7.0 -
6 Nkandla Gold 84 63 84 -21 7.0 -
7 Smith And Wesson 78 73 86 -13 4.0 -
8 Swing Upon A Star 102 102 107 -5 4.0 -
9 Midnight Gem 87 81 85 -4 7.0 -
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