Official NHA Assessment

Race 4: SA DERBY 4 APRIL MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Without Remorse
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
5 / 9
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    Sweetsummerlove      2    60.0    1    0.00     0.0   58    73           64    +6
2    Savara's Princess    2    60.0    2    1.10     0.0   71    77           77    +6
3    Without Remorse      2    60.0    3    1.60     0.0   76    76           76    +0
4    Devious Looks        3    60.0    4    3.85     2.5   -     69           69    +69
5    Heavenly Lace        2    56.0    5    8.10     0.0   -     65           65    +65
6    Memphis              2    60.0    6    99.99    0.0   40    73           73    +33
99   Floral Fury          3    60.0    99   0.00     2.5   -     68           68    +0
99   Moana                2    56.0    99   0.00     0.0   -     65           65    +0
99   The Reason           3    60.0    99   0.00     2.5   -     68           68    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Sweetsummerlove 58 58 64 -6 0.0 -
2 Savara's Princess 71 67 77 -10 0.0 -
3 Without Remorse Line 76 76 76 ✓ Match 0.0
4 Devious Looks - - 69 -69 2.5 -
5 Heavenly Lace - - 65 - 0.0 -
6 Memphis 40 40 73 -33 0.0 -
99 Floral Fury - - 68 -68 2.5 -
99 Moana - - 65 - 0.0 -
99 The Reason - 73 68 +5 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