Official NHA Assessment

Race 8: BET WITH COLOSSUS POOLS EXCLUSIVE ON www.tote.co.za CLASS 4 (F & M) (For Fillies & Mares. Benchmark at 60.0kg = 82)

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Line Horse
Pretty Kara
Reference for assessment
Exact Matches
2 / 11
Calculated = Official
Close Matches
4 / 11
Within 2 points
Significant Diffs
4 / 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    Hunga Tonga          3    57.5    1    0.00     2.0   77    80           80    +3
2    Saint Brigid         3    59.0    2    0.50     2.0   80    88           88    +8
3    Pretty Kara          3    55.5    3    0.90     2.0   80    80           80    +0
4    Taylor's Version     2    56.0    4    2.20     0.0   78    84           84    +6
5    Heavenly Mafia       2    56.5    5    2.50     0.0   79    84           84    +5
5    Silver Salute        3    58.0    5    2.50     2.0   82    83           83    +1
7    Red Taffety          2    57.0    7    4.60     0.0   80    83           83    +3
8    Sesame               3    58.0    8    4.80     2.0   78    81           81    +3
9    Rani Tarabai         3    59.0    9    5.05     2.0   80    83           83    +3
99   Blue Poppy           3    57.0    99   0.00     2.0   -     79           79    +0
99   Miss Twinkle         3    59.5    99   0.00     2.0   -     84           84    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Hunga Tonga 77 80 80 ✓ Match 2.0 -
2 Saint Brigid 80 81 88 -7 2.0 -
3 Pretty Kara Line 80 80 80 ✓ Match 2.0
4 Taylor's Version 78 78 84 -6 0.0 -
5 Heavenly Mafia 79 77 84 -7 0.0 -
5 Silver Salute 82 82 83 -1 2.0 -
7 Red Taffety 80 80 83 -3 0.0 -
8 Sesame 78 78 81 -3 2.0 -
9 Rani Tarabai 80 77 83 -6 2.0 -
99 Blue Poppy - 83 79 +4 2.0 -
99 Miss Twinkle - 86 84 +2 2.0 -
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