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
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
6 / 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    Nyaka Nyaka          2    60.0    1    0.00     2.5   -     -            -     +0
2    Constellation        2    60.0    2    0.80     2.5   -     -            -     +0
3    Red Penny            2    60.0    3    2.55     2.5   -     -            -     +0
4    Sunset Warrior       2    60.0    4    7.15     2.5   -     -            -     +0
5    Hotaru               2    57.5    5    8.40     2.5   -     -            -     +0
6    Emerald City         2    60.0    6    22.00    2.5   -     -            -     +0
99   Scott's Guard        2    60.0    99   0.00     2.5   -     -            -     +0
99   Safe Travel          2    60.0    99   0.00     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 Nyaka Nyaka - 101 - +101 2.5 -
2 Constellation - 114 - +114 2.5 -
3 Red Penny - 85 - +85 2.5 -
4 Sunset Warrior - 76 - +76 2.5 -
5 Hotaru - 91 - +91 2.5 -
6 Emerald City - 71 - +71 2.5 -
99 Scott's Guard - 63 - - 2.5 -
99 Safe Travel - 89 - - 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