Official NHA Assessment

Race 3: 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 / 10
Calculated = Official
Close Matches
8 / 10
Within 2 points
Significant Diffs
0 / 10
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    Gorgeous Girl        4    56.0    1    0.00     1.0   74    76           76    +2
2    Pretty Kara          3    56.5    2    0.40     2.0   80    80           80    +0
3    Rabble Rouser        3    55.5    3    0.65     2.0   78    78           78    +0
4    Aquarius             3    57.0    4    1.25     2.0   81    80           80    -1
5    Saudi Sweep          3    51.5    5    3.55     2.0   68    66           66    -2
6    Shesha Ntombi        3    56.0    6    3.85     2.0   74    75           75    +1
7    Clickbait            3    55.5    7    4.10     2.0   73    74           74    +1
8    Line In The Sky      4    53.5    8    5.15     1.0   72    71           71    -1
9    Bella Valentina      3    57.0    9    7.15     2.0   81    76           76    -5
10   Blue Horizon         4    61.0    10   9.55     1.0   84    86           86    +2
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Gorgeous Girl 74 74 76 -2 1.0 -
2 Pretty Kara Line 80 80 80 ✓ Match 2.0
3 Rabble Rouser 78 78 78 ✓ Match 2.0 -
4 Aquarius 81 81 80 +1 2.0 -
5 Saudi Sweep 68 68 66 +2 2.0 -
6 Shesha Ntombi 74 74 75 -1 2.0 -
7 Clickbait 73 70 74 -4 2.0 -
8 Line In The Sky 72 72 71 +1 1.0 -
9 Bella Valentina 81 81 76 +5 2.0 -
10 Blue Horizon 84 84 86 -2 1.0 -
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