Official NHA Assessment

Race 2: PIERE STRYDOM MEMBER OF 300 WINS IN-A-SEASON CLUB MAIDEN PLATE (F & M) (For Maiden F & M)

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Line Horse
Iconic Winter
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
6 / 10
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    Blushing Bloom       2    57.0    1    0.00     0.5   -     66           6     +6
2    Iconic Winter        2    60.0    2    1.80     0.5   72    72           72    +0
3    Empress Wu           3    60.0    3    3.70     1.5   68    70           70    +2
4    Emerald Countess     2    57.0    4    7.80     0.5   -     66           66    +66
5    Cyber Spirit         2    56.0    5    8.00     0.5   66    64           64    -2
6    Savara's Princess    2    57.0    6    8.10     0.5   -     66           66    +66
7    Ringa Ringa Roses    2    57.0    7    8.30     0.5   -     66           66    +66
8    Twelfth Of Never     2    57.0    8    10.30    0.5   -     66           66    +66
9    Sassy Lassie         2    55.5    9    20.50    0.5   -     63           63    +63
99   Korcula              2    57.0    99   0.00     0.5   -     66           66    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Blushing Bloom - 83 6 +77 0.5 -
2 Iconic Winter Line 72 68 72 -4 0.5
3 Empress Wu 68 61 70 -9 1.5 -
4 Emerald Countess - 72 66 +6 0.5 -
5 Cyber Spirit 66 62 64 -2 0.5 -
6 Savara's Princess - 67 66 +1 0.5 -
7 Ringa Ringa Roses - 87 66 +21 0.5 -
8 Twelfth Of Never - 74 66 +8 0.5 -
9 Sassy Lassie - 59 63 -4 0.5 -
99 Korcula - 77 66 +11 0.5 -
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