Official NHA Assessment

Race 5: www.tabgold.co.za MR 75 HANDICAP (Open)

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Line Horse
Hippocrates
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
3 / 11
Within 2 points
Significant Diffs
5 / 11
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    Happy Wanderer       5    52.0    1    0.00     0.0   50    74           50    +0
2    Hippocrates          3    57.5    2    1.00     7.5   70    70           70    +0
3    Jet Legacy           5    57.5    3    2.10     0.0   78    85           85    +7
4    Cupid's Song         4    56.5    4    2.50     9.0   76    65           66    -10
5    Purple Powahouse     8    50.5    5    4.10     0.0   64    71           71    +7
6    Masterbling          3    56.0    6    4.50     7.5   67    67           67    +0
7    Mr Molony            3    55.0    7    4.60     7.5   65    65           65    +0
8    Preemptive Strike    4    58.0    8    6.90     9.0   74    68           68    -6
9    Benni In The Area    3    60.0    9    9.70     7.5   75    75           75    +0
99   Captain Corrupt      2    60.0    99   0.00     5.0   -     80           80    +0
99   Buoyant Knight       3    58.5    99   0.00     7.5   -     72           72    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Happy Wanderer 50 55 50 +5 0.0 -
2 Hippocrates Line 70 68 70 -2 7.5
3 Jet Legacy 78 89 85 +4 0.0 -
4 Cupid's Song 76 79 66 +13 9.0 -
5 Purple Powahouse 64 55 71 -16 0.0 -
6 Masterbling 67 74 67 +7 7.5 -
7 Mr Molony 65 67 65 +2 7.5 -
8 Preemptive Strike 74 70 68 +2 9.0 -
9 Benni In The Area 75 78 75 +3 7.5 -
99 Captain Corrupt - 73 80 -7 5.0 -
99 Buoyant Knight - 82 72 +10 7.5 -
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