Official NHA Assessment

Race 6: PRETTY POLLY STAKES (Grade 3) (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
7 / 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    Leaving Las Vegas    2    60.0    1    0.00     2.5   -     -            -     +0
2    Elegant Ice          4    60.0    2    0.25     4.0   -     -            -     +0
3    Women Of Fame        2    57.0    3    1.25     2.5   -     -            -     +0
4    Mist In Scotland     2    60.0    4    9.50     2.5   -     -            -     +0
5    Midnight Fusion      4    60.0    5    10.00    4.0   -     -            -     +0
6    Exchange Student     4    60.0    6    11.00    4.0   -     -            -     +0
7    Global Thunder       4    60.0    7    31.00    4.0   -     -            -     +0
99   Woman Of Power       4    57.0    99   0.00     4.0   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Leaving Las Vegas - 89 - +89 2.5 -
2 Elegant Ice - 108 - +108 4.0 -
3 Women Of Fame - 79 - +79 2.5 -
4 Mist In Scotland - 77 - +77 2.5 -
5 Midnight Fusion - 67 - +67 4.0 -
6 Exchange Student - 104 - +104 4.0 -
7 Global Thunder - 83 - +83 4.0 -
99 Woman Of Power - 92 - - 4.0 -
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