Official NHA Assessment

Race 3: TAB 4RACING APP MAIDEN JUVENILE PLATE (For 2 yo R60 000 Win BSA Bonus Series)

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Line Horse
None identified
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
7 / 9
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    Billy Bowlegs        5    60.0    1    0.00     0.0   -     -            -     +0
2    Total Protection     2    60.0    2    0.30     0.0   -     -            -     +0
3    Eyjafjallajokull     2    60.0    3    0.50     0.0   -     -            -     +0
4    Future Pearl         2    60.0    4    8.50     0.0   -     -            -     +0
5    Summerland           5    57.0    5    10.50    0.0   -     -            -     +0
6    Libeccio             5    56.0    6    15.00    0.0   -     -            -     +0
7    Bello Marmalade      2    58.5    7    20.50    0.0   -     -            -     +0
8    The Merciful         5    58.5    8    24.75    0.0   -     -            -     +0
99   River Romeo          2    60.0    99   0.00     0.0   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Billy Bowlegs - 104 - +104 0.0 -
2 Total Protection - 96 - +96 0.0 -
3 Eyjafjallajokull - 86 - +86 0.0 -
4 Future Pearl - 114 - +114 0.0 -
5 Summerland - 45 - +45 0.0 -
6 Libeccio - 62 - +62 0.0 -
7 Bello Marmalade - - - ✓ Match 0.0 -
8 The Merciful - 54 - +54 0.0 -
99 River Romeo - 94 - - 0.0 -
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