Official NHA Assessment

Race 3: 4RACING THANKS AND APPRECIATES DIANNE STENGER MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

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Line Horse
Pike Place
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
7 / 8
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    Viva De Janeiro      5    60.0    1    0.00     0.0   71    69           69    -2
2    Scarlett Pimpernel   2    56.0    2    3.75     0.0   -     62           62    +62
3    Pike Place           3    60.0    3    4.25     1.0   68    68           68    +0
4    Golden Pavilion      2    56.0    4    5.00     0.0   -     61           61    +61
5    Circle Of Grace      4    56.0    5    6.00     0.5   -     60           60    +60
6    Shiny Silva          3    57.0    6    10.50    1.0   57    61           61    +4
7    Bompas               4    56.0    7    27.00    0.5   -     60           60    +60
99   Kudzu                2    56.0    99   0.00     0.0   -     61           61    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Viva De Janeiro 71 50 69 -19 0.0 -
2 Scarlett Pimpernel - 90 62 +28 0.0 -
3 Pike Place Line 68 57 68 -11 1.0
4 Golden Pavilion - 95 61 +34 0.0 -
5 Circle Of Grace - 51 60 -9 0.5 -
6 Shiny Silva 57 42 61 -19 1.0 -
7 Bompas - 58 60 -2 0.5 -
99 Kudzu - 80 61 +19 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