Official NHA Assessment

Race 3: ALL TO COME GRADUATION PLATE (Maidens,1 & 2 time winners)

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Line Horse
Glacier Gold
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
5 / 8
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    Vista Nova           4    57.0    1    0.00     6.0   74    79           70    -4
2    No Laying Up         4    58.5    2    0.25     6.0   96    82           86    -10
3    Glacier Gold         4    57.5    3    0.50     6.0   80    80           80    +0
4    Rock Garden          3    57.0    4    3.75     5.0   78    81           81    +3
5    Storm Chaser         4    54.5    5    5.00     6.0   64    74           74    +10
6    Paris Rix            3    60.0    6    8.50     5.0   88    87           87    -1
7    Legitimate           4    57.0    7    10.00    6.0   92    79           82    -10
99   Querari Ferrari      5    54.0    99   0.00     0.0   -     85           85    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Vista Nova 74 81 70 +11 6.0 -
2 No Laying Up 96 86 86 ✓ Match 6.0 -
3 Glacier Gold Line 80 104 80 +24 6.0
4 Rock Garden 78 78 81 -3 5.0 -
5 Storm Chaser 64 69 74 -5 6.0 -
6 Paris Rix 88 81 87 -6 5.0 -
7 Legitimate 92 89 82 +7 6.0 -
99 Querari Ferrari - 79 85 -6 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