Official NHA Assessment

Race 3: www.tabgold.co.za MAIDEN HANDICAP (F & M) (For Maiden F & M with 3 or more runs)

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Line Horse
Such A Cracker
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
3 / 8
Within 2 points
Significant Diffs
2 / 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    Top Ten              4    53.0    1    0.00     4.0   53    48           53    +0
2    Such A Cracker       2    58.0    2    1.60     0.0   69    69           69    +0
3    Columbia Road        3    51.0    3    2.10     7.0   46    41           41    -5
4    French Princess      2    52.5    4    2.30     0.0   58    57           57    -1
5    If You Say So        3    60.0    5    8.80     7.0   59    56           56    -3
6    Maith An Cailin      2    58.0    6    99.99    0.0   69    66           66    -3
99   Critical Thinking    3    53.5    99   0.00     7.0   -     43           43    +0
99   Girls Got Rhythm     3    50.5    99   0.00     7.0   -     37           37    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Top Ten 53 50 53 -3 4.0 -
2 Such A Cracker Line 69 64 69 -5 0.0
3 Columbia Road 46 54 41 +13 7.0 -
4 French Princess 58 65 57 +8 0.0 -
5 If You Say So 59 57 56 +1 7.0 -
6 Maith An Cailin 69 68 66 +2 0.0 -
99 Critical Thinking - 39 43 -4 7.0 -
99 Girls Got Rhythm - 39 37 +2 7.0 -
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