Official NHA Assessment

Race 1: 4RACING WELCOMES YOU MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

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Line Horse
Skittles Skies
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
0 / 11
Within 2 points
Significant Diffs
11 / 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    Skittles Skies       3    57.0    1    0.00     8.0   86    86           86    +0
2    Hat Trick Or Treat   2    57.0    2    3.00     0.0   79    104          104   +25
3    Serrano              3    57.0    3    4.00     8.0   85    87           87    +2
4    Pyro Edition         2    57.0    4    9.25     0.0   -     102          102   +102
5    Oklahoma Twister     4    60.0    5    10.75    5.0   65    98           98    +33
6    Stop The Traffic     4    60.0    6    15.00    5.0   -     98           98    +98
7    Prolific Star        3    57.0    7    15.25    8.0   -     86           86    +86
8    Yukon                4    57.5    8    21.50    5.0   -     93           93    +93
9    Rawalpindi           2    57.0    9    22.25    0.0   61    102          102   +41
99   Under The Rainbow    3    60.0    99   0.00     8.0   -     92           92    +0
99   Mickey Blue Eyes     2    57.0    99   0.00     0.0   -     102          102   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Skittles Skies Line 86 96 86 +10 8.0
2 Hat Trick Or Treat 79 76 104 -28 0.0 -
3 Serrano 85 75 87 -12 8.0 -
4 Pyro Edition - 71 102 -31 0.0 -
5 Oklahoma Twister 65 71 98 -27 5.0 -
6 Stop The Traffic - 65 98 -33 5.0 -
7 Prolific Star - 64 86 -22 8.0 -
8 Yukon - 59 93 -34 5.0 -
9 Rawalpindi 61 62 102 -40 0.0 -
99 Under The Rainbow - 64 92 -28 8.0 -
99 Mickey Blue Eyes - 72 102 -30 0.0 -
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