Official NHA Assessment

Race 4: THE COUNTRY CHAMPIONSHIP CLASS 4 (Open. Benchmark at 60.0kg = 78)

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Line Horse
Unicorn Alert
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
0 / 11
Within 2 points
Significant Diffs
11 / 11
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    Michael Faraday      2    59.5    1    0.00     0.0   77    91           83    +6
2    Fibonacci            2    59.5    2    0.05     0.0   86    91           91    +5
3    Unicorn Alert        3    58.5    3    1.30     4.0   84    84           84    +0
4    Kelp Forest          5    56.0    4    1.60     0.0   70    87           87    +17
5    Steinbeck            3    62.0    5    2.10     4.0   82    91           91    +9
6    Champagne Mac        4    55.5    6    2.20     2.5   78    81           81    +3
7    Augusta Blue         5    59.0    7    2.70     0.0   76    92           92    +16
8    Aberdeen             2    60.0    8    3.95     0.0   85    93           93    +8
9    Heart Stealer        5    58.0    9    8.20     0.0   74    88           88    +14
10   Down By The River    2    58.0    10   9.20     0.0   83    88           88    +5
11   Thunder Masala       3    52.0    11   9.60     4.0   59    68           68    +9
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Michael Faraday 77 68 83 -15 0.0 -
2 Fibonacci 86 73 91 -18 0.0 -
3 Unicorn Alert Line 84 61 84 -23 4.0
4 Kelp Forest 70 81 87 -6 0.0 -
5 Steinbeck 82 79 91 -12 4.0 -
6 Champagne Mac 78 55 81 -26 2.5 -
7 Augusta Blue 76 69 92 -23 0.0 -
8 Aberdeen 85 74 93 -19 0.0 -
9 Heart Stealer 74 80 88 -8 0.0 -
10 Down By The River 83 95 88 +7 0.0 -
11 Thunder Masala 59 50 68 -18 4.0 -
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