Official NHA Assessment

Race 3: 4RACING.TV MAIDEN PLATE (F & M) (For Maiden F & M. R15 000 Win bonus ROA Members)

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Line Horse
Countess Danza
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
7 / 9
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    Countess Danza       5    60.0    1    0.00     0.0   62    62           62    +0
2    Gocekwithlove        2    56.0    2    1.60     0.0   -     57           57    +57
3    Mount Etna           4    56.0    3    2.00     0.5   -     56           56    +56
4    Solo Diva            3    60.0    4    2.10     1.0   69    63           63    -6
5    Shiny Silva          3    60.0    5    2.25     1.0   54    63           63    +9
6    Butternutenrooiwyn   2    56.0    6    4.75     0.0   -     54           54    +54
7    She's A Klawer       2    60.0    7    4.85     0.0   57    62           62    +5
8    United's Ransom      3    60.0    8    6.00     1.0   59    60           60    +1
9    Zakynthos            3    57.5    9    11.00    1.0   -     55           55    +55
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Countess Danza Line 62 51 62 -11 0.0
2 Gocekwithlove - 102 57 +45 0.0 -
3 Mount Etna - 79 56 +23 0.5 -
4 Solo Diva 69 65 63 +2 1.0 -
5 Shiny Silva 54 42 63 -21 1.0 -
6 Butternutenrooiwyn - 60 54 +6 0.0 -
7 She's A Klawer 57 50 62 -12 0.0 -
8 United's Ransom 59 59 60 -1 1.0 -
9 Zakynthos - 35 55 -20 1.0 -
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