Official NHA Assessment

Race 4: TAKE A BET WINA NUMBA NUMBA PINNACLE STAKES (Open)

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Line Horse
Barbaresco
Reference for assessment
Exact Matches
1 / 7
Calculated = Official
Close Matches
1 / 7
Within 2 points
Significant Diffs
3 / 7
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    Main Defender        4    62.0    1    0.00     2.0   130   121          121   -9
2    Barbaresco           4    62.0    2    0.90     2.0   125   125          125   +0
3    Texas Red            5    56.0    3    1.30     0.0   110   116          116   +6
4    White Pearl          4    56.0    4    4.50     2.0   114   109          109   -5
5    Purple Pitcher       4    62.0    5    8.50     2.0   123   121          121   -2
99   Melech               5    60.0    99   0.00     0.0   -     121          121   +0
99   Zinovi               2    56.0    99   0.00     0.0   -     113          113   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Main Defender 130 130 121 +9 2.0 -
2 Barbaresco Line 125 116 125 -9 2.0
3 Texas Red 110 119 116 +3 0.0 -
4 White Pearl 114 114 109 +5 2.0 -
5 Purple Pitcher 123 121 121 ✓ Match 2.0 -
99 Melech - 118 121 -3 0.0 -
99 Zinovi - 120 113 +7 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