Official NHA Assessment

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Line Horse
Cyber Spirit
Reference for assessment
Exact Matches
2 / 14
Calculated = Official
Close Matches
2 / 14
Within 2 points
Significant Diffs
9 / 14
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    Lady Of Memphis      3    59.0    1    0.00     8.5   -     66           6     +6
2    Winter In Paris      4    60.0    2    1.75     10.0  59    65           65    +6
3    Cyber Spirit         2    59.0    3    3.50     5.5   72    72           72    +0
4    Radiant Heat         3    56.5    4    3.75     8.5   78    61           68    -10
5    My Siraya            3    59.0    5    4.25     8.5   -     66           66    +66
6    Touch Of Heaven      3    59.0    6    5.50     8.5   -     66           66    +66
7    Chilli Marmalade     5    60.0    7    5.75     0.0   51    85           85    +34
8    Flying Solo          3    59.0    8    7.00     8.5   -     66           66    +66
9    Milo's Millionaire   3    59.0    9    7.25     8.5   76    66           66    -10
10   La Chance            4    60.0    10   7.75     10.0  50    65           65    +15
11   Diamond Dash         2    59.0    11   9.00     5.5   54    72           72    +18
12   Black Hole Sun       4    60.0    12   9.25     10.0  63    65           65    +2
13   Q For Love           3    59.0    13   11.75    8.5   -     66           66    +66
99   Golden Argo          3    60.0    99   0.00     8.5   -     68           68    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Lady Of Memphis - 72 6 +66 8.5 -
2 Winter In Paris 59 60 65 -5 10.0 -
3 Cyber Spirit Line 72 62 72 -10 5.5
4 Radiant Heat 78 72 68 +4 8.5 -
5 My Siraya - 70 66 +4 8.5 -
6 Touch Of Heaven - 57 66 -9 8.5 -
7 Chilli Marmalade 51 48 85 -37 0.0 -
8 Flying Solo - 66 66 ✓ Match 8.5 -
9 Milo's Millionaire 76 66 66 ✓ Match 8.5 -
10 La Chance 50 54 65 -11 10.0 -
11 Diamond Dash 54 61 72 -11 5.5 -
12 Black Hole Sun 63 53 65 -12 10.0 -
13 Q For Love - 60 66 -6 8.5 -
99 Golden Argo - 61 68 -7 8.5 -
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