Official NHA Assessment

Race 2: Star Factory PINNACLE STAKES (For all horses)

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Line Horse
Aquae Sulis
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
1 / 7
Within 2 points
Significant Diffs
4 / 7
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    Donald McDonald      5    60.0    1    0.00     0.0   105   109          109   +4
2    Admire Me            4    53.5    2    0.40     6.0   97    89           89    -8
3    Aquae Sulis          5    46.0    3    0.70     0.0   86    86           86    +0
4    Evening Primrose     3    50.0    4    3.50     9.5   81    71           71    -10
5    Super Silver         3    52.5    5    5.20     9.5   87    75           77    -10
6    Dindingwe            4    54.5    6    8.30     6.0   95    86           86    -9
7    Love Bomb            4    54.0    7    8.40     6.0   95    85           85    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Donald McDonald 105 107 109 -2 0.0 -
2 Admire Me 97 85 89 -4 6.0 -
3 Aquae Sulis Line 86 69 86 -17 0.0
4 Evening Primrose 81 77 71 +6 9.5 -
5 Super Silver 87 82 77 +5 9.5 -
6 Dindingwe 95 95 86 +9 6.0 -
7 Love Bomb 95 77 85 -8 6.0 -
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