Official NHA Assessment

Race 3: OPEN A TABGOLD ACCOUNT - 031 314 1874 MR 94 HANDICAP (Open)

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Line Horse
Prince Of Taranto
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
4 / 9
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    Celestial City       4    57.0    1    0.00     0.5   88    85           88    +0
2    Passage Of Power     6    56.5    2    1.05     0.0   87    89           89    +2
3    Prince Of Taranto    4    58.5    3    1.30     0.5   91    91           91    +0
4    Kitchakal            5    58.5    4    3.40     0.0   93    90           90    -3
5    Ralph The Rascal     8    54.0    5    4.10     0.0   82    81           81    -1
6    Formagear            5    60.0    6    4.50     0.0   96    92           92    -4
7    Ideal Act            3    59.0    7    4.90     0.5   92    89           89    -3
8    Bowie                7    60.0    8    5.30     0.0   94    92           92    -2
9    Back To Black        4    57.0    9    8.60     0.5   91    85           85    -6
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Celestial City 88 92 88 +4 0.5 -
2 Passage Of Power 87 76 89 -13 0.0 -
3 Prince Of Taranto Line 91 92 91 +1 0.5
4 Kitchakal 93 86 90 -4 0.0 -
5 Ralph The Rascal 82 73 81 -8 0.0 -
6 Formagear 96 108 92 +16 0.0 -
7 Ideal Act 92 86 89 -3 0.5 -
8 Bowie 94 82 92 -10 0.0 -
9 Back To Black 91 89 85 +4 0.5 -
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