Official NHA Assessment

Race 7: LADY'S SLIPPER STAKES (Listed) (For 2 yof R100 000 Win BSA / CRS Bonus)

Back to Race
Line Horse
None identified
Reference for assessment
Exact Matches
0 / 6
Calculated = Official
Close Matches
0 / 6
Within 2 points
Significant Diffs
6 / 6
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Golden Palm          2    60.0    1    0.00     0.0   -     -            -     +0
2    Silva City           2    60.0    2    10.00    0.0   -     -            -     +0
3    Royal City Girl      2    60.0    3    10.25    0.0   -     -            -     +0
4    Fiery Countess       2    60.0    4    12.25    0.0   -     -            -     +0
5    Augusta Rosso        2    60.0    5    22.00    0.0   -     -            -     +0
6    Barolo               2    60.0    6    24.25    0.0   -     -            -     +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Golden Palm - 115 - +115 0.0 -
2 Silva City - 99 - +99 0.0 -
3 Royal City Girl - 93 - +93 0.0 -
4 Fiery Countess - 88 - +88 0.0 -
5 Augusta Rosso - 86 - +86 0.0 -
6 Barolo - 79 - +79 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