Official NHA Assessment

Race 2: WSB SPIN WITH THE BEST MAIDEN 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 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
8 / 8
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    Jambo Sana           2    60.0    1    0.00     1.5   -     -            -     +0
2    Stage Play           2    60.0    2    0.25     1.5   -     -            -     +0
3    Vandalise            2    60.0    3    1.00     1.5   -     -            -     +0
4    Elusive Mata         4    60.0    4    2.50     0.0   -     -            -     +0
5    Red Love             2    60.0    5    4.00     1.5   -     -            -     +0
6    Meresankh            2    60.0    6    4.25     1.5   -     -            -     +0
7    Fire Glow            4    60.0    7    5.50     0.0   -     -            -     +0
8    Burnt Sugar          2    60.0    8    29.75    1.5   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Jambo Sana - 74 - +74 1.5 -
2 Stage Play - 73 - +73 1.5 -
3 Vandalise - 67 - +67 1.5 -
4 Elusive Mata - 58 - +58 0.0 -
5 Red Love - 64 - +64 1.5 -
6 Meresankh - 55 - +55 1.5 -
7 Fire Glow - 67 - +67 0.0 -
8 Burnt Sugar - 44 - +44 1.5 -
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