Official NHA Assessment

Race 5: WWW.TAB4RACING.COM NOVICE HANDICAP (Maidens & 1 time winners)

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Line Horse
Calida
Reference for assessment
Exact Matches
2 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
5 / 10
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    Sonic Jet            3    56.0    1    0.00     5.0   85    63           78    -7
2    Peace Treaty         3    55.5    2    1.60     5.0   84    65           74    -10
3    Calida               2    53.0    3    2.30     0.0   69    69           69    +0
4    Potberrie            2    57.0    4    2.60     0.0   87    77           77    -10
5    Key News             2    57.5    5    3.10     0.0   88    78           78    -10
6    Guerilla Warfare     3    56.0    6    3.35     5.0   85    64           75    -10
7    Mutarazi             2    55.5    7    7.10     0.0   74    72           72    -2
8    Hat Trick Or Treat   2    56.5    8    8.10     0.0   86    74           76    -10
99   Bay Empire           2    57.0    99   0.00     0.0   -     75           75    +0
99   Confederate          3    60.0    99   0.00     5.0   -     71           71    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Sonic Jet 85 101 78 +23 5.0 -
2 Peace Treaty 84 69 74 -5 5.0 -
3 Calida Line 69 72 69 +3 0.0
4 Potberrie 87 105 77 +28 0.0 -
5 Key News 88 81 78 +3 0.0 -
6 Guerilla Warfare 85 75 75 ✓ Match 5.0 -
7 Mutarazi 74 65 72 -7 0.0 -
8 Hat Trick Or Treat 86 76 76 ✓ Match 0.0 -
99 Bay Empire - 62 75 -13 0.0 -
99 Confederate - 118 71 +47 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