Official NHA Assessment

Race 2: OPEN A TABGOLD ACCOUNT - 031 314 1874 MR 74 HANDICAP (Open)

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Line Horse
Ndaka
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
0 / 7
Within 2 points
Significant Diffs
5 / 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    Masterbling          3    55.5    1    0.00     8.5   65    65           65    +0
2    Love In Winter       4    59.5    2    0.90     10.0  73    70           70    -3
3    Ndaka                3    60.5    3    1.40     8.5   75    75           75    +0
4    Rhythm               2    58.0    4    3.50     5.5   70    76           76    +6
5    Happy Analia         4    61.0    5    4.60     10.0  76    73           73    -3
6    Trafalgar Square     6    60.5    6    4.85     0.0   78    92           92    +14
7    Lightning Jimmy      4    53.0    7    8.15     10.0  68    57           58    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Masterbling 65 74 65 +9 8.5 -
2 Love In Winter 73 74 70 +4 10.0 -
3 Ndaka Line 75 61 75 -14 8.5
4 Rhythm 70 67 76 -9 5.5 -
5 Happy Analia 76 78 73 +5 10.0 -
6 Trafalgar Square 78 69 92 -23 0.0 -
7 Lightning Jimmy 68 48 58 -10 10.0 -
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