Official NHA Assessment

Race 2: WSB SPINA WINA JUVENILE PLATE (Fillies) (For 2 yof R100 000 Win BSA Bonus Series)

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Line Horse
None identified
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
9 / 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    Red Hot Rose         2    57.0    1    0.00     2.0   -     -            -     +0
2    Global Thunder       4    60.0    2    0.10     3.5   -     -            -     +0
3    Shampimpi            4    55.5    3    1.00     3.5   -     -            -     +0
4    Sugary Sweet         2    57.0    4    1.05     2.0   -     -            -     +0
5    Women Of Fame        2    57.0    5    3.25     2.0   -     -            -     +0
6    Little Miz Swagger   2    57.5    6    9.00     2.0   -     -            -     +0
7    Butternutenrooiwyn   2    57.5    7    11.75    2.0   -     -            -     +0
8    Explosive Bond       4    57.0    8    14.75    3.5   -     -            -     +0
9    Best Intentions      2    57.0    9    18.75    2.0   -     -            -     +0
99   Ice Star             2    57.5    99   0.00     2.0   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Red Hot Rose - 88 - +88 2.0 -
2 Global Thunder - 83 - +83 3.5 -
3 Shampimpi - 70 - +70 3.5 -
4 Sugary Sweet - 56 - +56 2.0 -
5 Women Of Fame - 79 - +79 2.0 -
6 Little Miz Swagger - 71 - +71 2.0 -
7 Butternutenrooiwyn - 60 - +60 2.0 -
8 Explosive Bond - 94 - +94 3.5 -
9 Best Intentions - 67 - +67 2.0 -
99 Ice Star - 112 - - 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