Official NHA Assessment

Race 5: TAKE A BET WINA NUMBA NUMBA MAIDEN PLATE (F & M) (For Maiden F&M. R15 000 Win bonus ROA Members)

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Line Horse
Darling Harbour
Reference for assessment
Exact Matches
0 / 14
Calculated = Official
Close Matches
0 / 14
Within 2 points
Significant Diffs
13 / 14
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    Beating Wings        4    59.0    1    0.00     3.0   -     69           6     +6
2    Sukhumvit            3    59.0    2    2.25     6.0   -     66           66    +66
3    Darling Harbour      4    59.0    3    5.75     3.0   69    69           69    +0
4    Ice Cap              3    57.5    4    7.50     6.0   58    60           60    +2
5    Higgledy Piggledy    3    59.0    5    7.55     6.0   -     63           63    +63
6    Perform              2    60.0    6    9.25     0.0   59    77           77    +18
7    Silky Jet            4    57.5    7    12.00    3.0   -     66           66    +66
8    City Lights          4    59.0    8    12.25    3.0   67    69           69    +2
9    Voshaarnooi          2    60.0    9    17.00    0.0   52    77           77    +25
10   Gothic Princess      2    59.0    10   17.50    0.0   66    75           75    +9
11   Marieskop            3    59.0    11   24.00    6.0   -     63           63    +63
12   Im A Blondie         2    59.0    12   25.50    0.0   36    75           75    +39
99   Wild Willow          3    60.0    99   0.00     6.0   -     65           65    +0
99   Amor Perdido         3    60.0    99   0.00     6.0   -     65           65    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Beating Wings - 112 6 +106 3.0 -
2 Sukhumvit - 100 66 +34 6.0 -
3 Darling Harbour Line 69 60 69 -9 3.0
4 Ice Cap 58 54 60 -6 6.0 -
5 Higgledy Piggledy - 74 63 +11 6.0 -
6 Perform 59 54 77 -23 0.0 -
7 Silky Jet - 61 66 -5 3.0 -
8 City Lights 67 52 69 -17 3.0 -
9 Voshaarnooi 52 50 77 -27 0.0 -
10 Gothic Princess 66 62 75 -13 0.0 -
11 Marieskop - 50 63 -13 6.0 -
12 Im A Blondie 36 36 75 -39 0.0 -
99 Wild Willow - 38 65 -27 6.0 -
99 Amor Perdido - - 65 -65 6.0 -
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