Official NHA Assessment

Race 2: WWW.TAB4RACING.COM MAIDEN JUVENILE PLATE (For 2 yo R100 000 Win BSA / CRS Bonus)

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Line Horse
None identified
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
1 / 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    Mister Wilson        2    60.0    1    0.00     2.5   -     -            -     +0
2    Nyaka Nyaka          2    60.0    2    1.50     2.5   -     -            -     +0
3    Secret Warrior       2    60.0    3    2.60     2.5   -     -            -     +0
4    Simbine              2    60.0    4    6.00     2.5   -     -            -     +0
5    Carnarvon            2    60.0    5    7.70     2.5   -     -            -     +0
6    Concordia            2    57.5    6    8.00     2.5   -     -            -     +0
7    Free Bird            2    60.0    7    16.50    2.5   -     -            -     +0
8    Winters Lance        2    60.0    8    17.50    2.5   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Mister Wilson - 93 - +93 2.5 -
2 Nyaka Nyaka - 101 - +101 2.5 -
3 Secret Warrior - 70 - +70 2.5 -
4 Simbine - 78 - +78 2.5 -
5 Carnarvon - 78 - +78 2.5 -
6 Concordia - 69 - +69 2.5 -
7 Free Bird - 66 - +66 2.5 -
8 Winters Lance - - - ✓ Match 2.5 -
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