Official NHA Assessment

Race 5: PROTEA STAKES (Grade 3) (For 2 yo 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
6 / 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    Lucky Lad            4    60.0    1    0.00     4.0   -     -            -     +0
2    Amber Rock           2    54.5    2    0.40     2.5   -     -            -     +0
3    Gimmeanotherchance   4    57.0    3    5.00     4.0   -     -            -     +0
4    The Africa House     4    60.0    4    7.25     4.0   -     -            -     +0
5    Qhawe Lami           4    57.0    5    19.00    4.0   -     -            -     +0
6    Ziyasha              2    57.0    6    36.00    2.5   -     -            -     +0
99   Ripple Effect        2    57.5    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 Lucky Lad - 118 - +118 4.0 -
2 Amber Rock - 86 - +86 2.5 -
3 Gimmeanotherchance - 96 - +96 4.0 -
4 The Africa House - 93 - +93 4.0 -
5 Qhawe Lami - 80 - +80 4.0 -
6 Ziyasha - 118 - +118 2.5 -
99 Ripple Effect - 102 - - 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