Official NHA Assessment

Race 2: #THISISRACING MAIDEN PLATE (F & M) (For Maiden F & M. R10 000 WIN BONUS ROA MEMBERS)

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Line Horse
Bold Leah
Reference for assessment
Exact Matches
2 / 11
Calculated = Official
Close Matches
3 / 11
Within 2 points
Significant Diffs
7 / 11
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    Iqembulabesifazane   3    58.5    1    0.00     1.5   61    46           46    -15
2    Gailiea              3    60.0    2    5.25     1.5   57    49           49    -8
3    Bold Leah            4    60.0    3    6.00     0.5   51    51           51    +0
4    A Foreign Affair     3    60.0    4    7.00     1.5   52    49           49    -3
5    Wonder Woman         6    60.0    5    7.50     0.0   49    52           52    +3
6    Sailaway With Me     3    60.0    6    7.75     1.5   61    49           51    -10
7    Rebecca Grace        3    60.0    7    16.50    1.5   -     49           49    +49
8    Babyitscoldoutside   3    60.0    8    17.00    1.5   57    49           49    -8
99   Rose Of Mine         3    60.0    99   0.00     1.5   -     49           49    +0
99   Devastator           3    60.0    99   0.00     1.5   -     49           49    +0
99   Twice The Secret     3    60.0    99   0.00     1.5   -     49           49    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Iqembulabesifazane 61 65 46 +19 1.5 -
2 Gailiea 57 50 49 +1 1.5 -
3 Bold Leah Line 51 40 51 -11 0.5
4 A Foreign Affair 52 49 49 ✓ Match 1.5 -
5 Wonder Woman 49 43 52 -9 0.0 -
6 Sailaway With Me 61 56 51 +5 1.5 -
7 Rebecca Grace - 32 49 -17 1.5 -
8 Babyitscoldoutside 57 56 49 +7 1.5 -
99 Rose Of Mine - 58 49 +9 1.5 -
99 Devastator - 49 49 ✓ Match 1.5 -
99 Twice The Secret - 60 49 +11 1.5 -
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