Official NHA Assessment

Race 6: BIDVEST BAUHINIA STAKES (For Fillies and Mares - Non-Black Type)

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Line Horse
Poblano
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
3 / 8
Within 2 points
Significant Diffs
2 / 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    Green Diamond        2    54.0    1    0.00     3.0   105   103          103   -2
2    Poblano              3    54.0    2    1.80     4.5   100   100          100   +0
3    Chasing Happiness    3    60.0    3    4.70     4.5   112   112          112   +0
4    Little Ballerina     2    56.0    4    4.90     3.0   104   107          107   +3
5    Glastonbury          2    52.0    5    7.15     3.0   96    99           99    +3
6    Arverni Princess     2    52.0    6    7.25     3.0   67    99           99    +32
7    Rifle Queen          2    54.0    7    9.75     3.0   105   103          103   -2
99   Just The Two Of Us   4    52.0    99   0.00     5.0   -     95           95    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Green Diamond 105 111 103 +8 3.0 -
2 Poblano Line 100 100 100 ✓ Match 4.5
3 Chasing Happiness 112 110 112 -2 4.5 -
4 Little Ballerina 104 104 107 -3 3.0 -
5 Glastonbury 96 94 99 -5 3.0 -
6 Arverni Princess 67 67 99 -32 3.0 -
7 Rifle Queen 105 105 103 +2 3.0 -
99 Just The Two Of Us - 90 95 -5 5.0 -
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