Official NHA Assessment

Race 4: TABGOLD SCORE 6 SCORE 8 SCORE 10 MR 73 HANDICAP (Open)

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Line Horse
Fine Admiral
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
7 / 10
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    Circle Of Grace      4    56.5    1    0.00     2.0   75    67           75    +0
2    Wyatt's Choice       5    59.5    2    0.05     0.0   72    77           77    +5
3    Fine Admiral         3    56.5    3    1.25     4.5   66    66           66    +0
4    Release Me           3    61.5    4    1.85     4.5   76    75           75    -1
5    Fireflare            2    57.0    5    2.90     0.0   76    74           74    -2
6    Lucretius            6    58.5    6    3.20     0.0   70    77           77    +7
7    Mr Pigalle           4    60.0    7    3.30     2.0   73    75           75    +2
8    Eventidor            6    57.5    8    3.35     0.0   68    74           74    +6
9    Riccardo             7    57.5    9    3.40     0.0   71    74           74    +3
10   Scampton             2    58.0    10   3.80     0.0   78    75           75    -3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Circle Of Grace 75 51 75 -24 2.0 -
2 Wyatt's Choice 72 71 77 -6 0.0 -
3 Fine Admiral Line 66 73 66 +7 4.5
4 Release Me 76 74 75 -1 4.5 -
5 Fireflare 76 69 74 -5 0.0 -
6 Lucretius 70 64 77 -13 0.0 -
7 Mr Pigalle 73 68 75 -7 2.0 -
8 Eventidor 68 89 74 +15 0.0 -
9 Riccardo 71 68 74 -6 0.0 -
10 Scampton 78 70 75 -5 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