Official NHA Assessment

Race 2: RACEHORSE OWNERS ASSOCIATION PINNACLE STAKES (Open)

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Line Horse
Willow Express
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
0 / 7
Within 2 points
Significant Diffs
5 / 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    Prince Of Fire       3    56.0    1    0.00     2.0   104   94           94    -10
2    Willow Express       7    56.0    2    3.40     0.0   99    99           99    +0
3    Super Silvano        5    60.0    3    4.65     0.0   107   106          106   -1
4    Vars Vicky           4    60.0    4    6.75     1.0   108   104          104   -4
5    Donald McDonald      5    58.0    5    7.55     0.0   102   102          102   +0
6    Bard Of Avon         3    56.0    6    8.75     2.0   105   94           95    -10
7    Indlamu              4    54.0    7    10.75    1.0   96    92           92    -4
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Prince Of Fire 104 104 94 +10 2.0 -
2 Willow Express Line 99 82 99 -17 0.0
3 Super Silvano 107 103 106 -3 0.0 -
4 Vars Vicky 108 116 104 +12 1.0 -
5 Donald McDonald 102 107 102 +5 0.0 -
6 Bard Of Avon 105 105 95 +10 2.0 -
7 Indlamu 96 86 92 -6 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