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
1 / 11
Calculated = Official
Close Matches
3 / 11
Within 2 points
Significant Diffs
4 / 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    Radicchio            5    57.5    1    0.00     0.0   73    68           68    -5
2    Oliver               5    60.0    2    0.40     0.0   78    78           78    +0
3    Slurricane           3    59.5    3    2.15     2.0   77    71           71    -6
4    Big Unit             3    59.0    4    2.35     2.0   81    69           71    -10
5    Steadfast            2    56.0    5    2.65     0.0   75    67           67    -8
6    All About Ronnie     3    58.5    6    3.40     2.0   75    67           67    -8
7    Mount Pleasant (AUS  4    58.0    7    3.45     1.0   74    68           68    -6
8    Augusta Blue         5    58.5    8    4.20     0.0   75    71           71    -4
9    Bardolino            2    60.5    9    5.95     0.0   79    74           74    -5
10   Trippi's Silk        4    59.5    10   6.25     1.0   82    70           72    -10
11   Hoodia               4    59.5    11   9.75     1.0   82    70           72    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Radicchio 73 100 68 +32 0.0 -
2 Oliver Line 78 97 78 +19 0.0
3 Slurricane 77 76 71 +5 2.0 -
4 Big Unit 81 84 71 +13 2.0 -
5 Steadfast 75 75 67 +8 0.0 -
6 All About Ronnie 75 67 67 ✓ Match 2.0 -
7 Mount Pleasant (AUS) 74 71 68 +3 1.0 -
8 Augusta Blue 75 69 71 -2 0.0 -
9 Bardolino 79 79 74 +5 0.0 -
10 Trippi's Silk 82 73 72 +1 1.0 -
11 Hoodia 82 76 72 +4 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