Official NHA Assessment

Race 2: HAPPY MOTHER'S DAY JUVENILE PLATE (For 2 yo R100 000 Win BSA / CRS Bonus)

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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    Charming Cheetah     2    60.0    1    0.00     1.5   -     -            -     +0
2    Zalatoris            2    60.0    2    0.20     1.5   -     -            -     +0
3    Red Penny            2    60.0    3    1.70     1.5   -     -            -     +0
4    Tin Pan Alley        2    60.0    4    3.50     1.5   -     -            -     +0
5    Titans Of War        2    57.0    5    11.75    1.5   -     -            -     +0
6    Blushing Bloom       2    55.0    6    13.00    1.5   -     -            -     +0
7    Winchester           2    57.0    7    17.00    1.5   -     -            -     +0
99   On An Impulse        2    57.0    99   0.00     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 Charming Cheetah - 106 - +106 1.5 -
2 Zalatoris - 108 - +108 1.5 -
3 Red Penny - 85 - +85 1.5 -
4 Tin Pan Alley - 128 - +128 1.5 -
5 Titans Of War - 91 - +91 1.5 -
6 Blushing Bloom - 83 - +83 1.5 -
7 Winchester - 69 - +69 1.5 -
99 On An Impulse - 79 - - 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