Official NHA Assessment

Race 5: THE COUNTRY CHAMPIONSHIP CLASS 4 (Open. Benchmark at 60.0kg = 78)

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Line Horse
Oliver
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
8 / 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    Big Unit             3    56.5    1    0.00     4.0   79    58           58    -21
2    Oliver               5    59.5    2    0.30     0.0   77    77           77    +0
3    Incredibill          3    56.0    3    0.35     4.0   70    62           62    -8
4    All About Ronnie     3    59.0    4    2.35     4.0   74    65           65    -9
5    Tyrion Lannister     2    58.5    5    2.75     0.0   84    72           74    -10
6    Guarding The Wall    4    57.0    6    3.05     2.5   81    64           71    -10
7    Bristol Hercules     2    59.0    7    3.55     0.0   85    72           75    -10
8    Gravity              4    57.5    8    11.05    2.5   82    63           72    -10
9    Vengeance Forever    3    52.0    9    11.55    4.0   56    49           49    -7
10   Trippi's Silk        4    61.0    10   12.55    2.5   89    70           79    -10
11   Hard Winter          2    54.0    11   18.55    0.0   75    61           65    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Big Unit 79 84 58 +26 4.0 -
2 Oliver Line 77 97 77 +20 0.0
3 Incredibill 70 70 62 +8 4.0 -
4 All About Ronnie 74 67 65 +2 4.0 -
5 Tyrion Lannister 84 88 74 +14 0.0 -
6 Guarding The Wall 81 67 71 -4 2.5 -
7 Bristol Hercules 85 87 75 +12 0.0 -
8 Gravity 82 63 72 -9 2.5 -
9 Vengeance Forever 56 51 49 +2 4.0 -
10 Trippi's Silk 89 73 79 -6 2.5 -
11 Hard Winter 75 72 65 +7 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