Official NHA Assessment

Race 8: TAKING THE REINS CLASS 4 (Open. Benchmark at 60.0kg = 78)

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Line Horse
Sudden Song
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
1 / 11
Within 2 points
Significant Diffs
9 / 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    Weather King         2    56.0    1    0.00     0.0   83    79           79    -4
2    Marshall Field       3    56.5    2    2.25     7.0   70    71           71    +1
3    Sudden Song          3    60.0    3    2.35     7.0   77    77           77    +0
4    Twice The Master     3    52.0    4    3.35     7.0   57    60           60    +3
5    Avignon              4    56.0    5    3.40     3.5   83    75           75    -8
6    Caramel Fudge        3    52.5    6    4.90     7.0   61    58           58    -3
7    Family Power         4    55.0    7    5.40     3.5   81    70           71    -10
8    Exceeder             4    56.0    8    6.65     3.5   69    72           72    +3
9    Destined To Dance    3    52.0    9    7.90     7.0   52    57           57    +5
10   Ignatius             2    60.0    10   8.30     0.0   78    87           87    +9
11   Lord Fyfield         2    55.0    11   8.60     0.0   81    77           77    -4
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Weather King 83 89 79 +10 0.0 -
2 Marshall Field 70 77 71 +6 7.0 -
3 Sudden Song Line 77 71 77 -6 7.0
4 Twice The Master 57 58 60 -2 7.0 -
5 Avignon 83 61 75 -14 3.5 -
6 Caramel Fudge 61 53 58 -5 7.0 -
7 Family Power 81 87 71 +16 3.5 -
8 Exceeder 69 59 72 -13 3.5 -
9 Destined To Dance 52 48 57 -9 7.0 -
10 Ignatius 78 70 87 -17 0.0 -
11 Lord Fyfield 81 65 77 -12 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