Official NHA Assessment

Race 4: MERIT RATED 70 HANDICAP (Open)

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Line Horse
Enrapture
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
6 / 8
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    Deposition           6    53.5    1    0.00     0.0   60    52           60    +0
2    Enrapture            5    60.0    2    1.75     0.0   68    68           68    +0
3    Viscountess Vivien   6    57.0    3    1.85     0.0   60    62           62    +2
4    Kursk (AUS)          6    57.5    4    2.60     0.0   63    62           62    -1
5    Cool Solution        9    56.5    5    4.35     0.0   61    58           58    -3
6    Karvani              7    60.0    6    7.85     0.0   68    65           65    -3
7    Peaceable            4    60.0    7    9.60     1.5   68    62           62    -6
8    Bella Noir           4    58.5    8    99.99    1.5   65    59           59    -6
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Deposition 60 68 60 +8 0.0 -
2 Enrapture Line 68 82 68 +14 0.0
3 Viscountess Vivien 60 72 62 +10 0.0 -
4 Kursk (AUS) 63 67 62 +5 0.0 -
5 Cool Solution 61 51 58 -7 0.0 -
6 Karvani 68 73 65 +8 0.0 -
7 Peaceable 68 65 62 +3 1.5 -
8 Bella Noir 65 66 59 +7 1.5 -
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