Official NHA Assessment

Race 6: DAHLIA PLATE (Listed) (For 2 year-olds. R100 000 Win BSA Bonus Series)

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Line Horse
None identified
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
0 / 7
Within 2 points
Significant Diffs
7 / 7
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    Luna Halo            4    57.5    1    0.00     0.0   -     -            -     +0
2    Golden Sickle        4    56.5    2    0.10     0.0   -     -            -     +0
3    Joy And Peace        4    56.5    3    0.60     0.0   -     -            -     +0
4    Summer Odyssey       2    56.5    4    1.85     1.5   -     -            -     +0
5    Vision Of Wonder     2    60.0    5    2.35     1.5   -     -            -     +0
6    The Winter Lake      4    59.0    6    2.60     0.0   -     -            -     +0
7    Global Force         2    59.0    7    6.35     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 Luna Halo - 106 - +106 0.0 -
2 Golden Sickle - 121 - +121 0.0 -
3 Joy And Peace - 110 - +110 0.0 -
4 Summer Odyssey - 84 - +84 1.5 -
5 Vision Of Wonder - 87 - +87 1.5 -
6 The Winter Lake - 87 - +87 0.0 -
7 Global Force - 80 - +80 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