Official NHA Assessment

Race 4: RIDGEMONT CAPE OF GOOD HOPE NURSERY (Grade 3) (For 2 yo R100 000 Win BSA / CRS Bonus. Leg 3 Sum Juv Series)

Back to Race
Line Horse
None identified
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
0 / 9
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Red Spice            2    60.0    1    0.00     3.0   -     -            -     +0
2    Roskilde             2    59.0    2    0.40     3.0   -     -            -     +0
3    Lady Nancy           2    56.5    3    0.90     3.0   -     -            -     +0
4    Querari Dancer       2    57.5    4    0.95     3.0   -     -            -     +0
5    World Series         2    60.0    5    2.45     3.0   -     -            -     +0
6    Catwalk King         2    60.0    6    2.85     3.0   -     -            -     +0
7    Marseilles           2    60.0    7    3.25     3.0   -     -            -     +0
8    Magma Flow           2    59.0    8    3.65     3.0   -     -            -     +0
9    Casperita            2    57.5    9    5.15     3.0   -     -            -     +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Red Spice - - - - 3.0 -
2 Roskilde - - - - 3.0 -
3 Lady Nancy - - - - 3.0 -
4 Querari Dancer - - - - 3.0 -
5 World Series - - - - 3.0 -
6 Catwalk King - - - - 3.0 -
7 Marseilles - - - - 3.0 -
8 Magma Flow - - - - 3.0 -
9 Casperita - - - - 3.0 -
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