Official NHA Assessment

Race 6: TAB.CO.ZA PINNACLE STAKES (Open to all horses)

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Line Horse
Texas Red
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
2 / 8
Within 2 points
Significant Diffs
5 / 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    Argo Alley           2    54.0    1    0.00     0.0   107   103          103   -4
2    Texas Red            5    60.0    2    1.00     0.0   119   119          119   +0
3    Musical Score        3    54.0    3    1.20     6.0   109   95           99    -10
4    Taegan's Champ       3    49.5    4    1.80     6.0   105   85           95    -10
5    That's My Baby       2    48.5    5    1.90     0.0   101   95           95    -6
6    Hotarubi             4    52.0    6    5.20     3.0   104   93           94    -10
99   Navajo Nation        4    52.0    99   0.00     3.0   -     93           93    +0
99   Red Bomber           2    50.0    99   0.00     0.0   -     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 Argo Alley 107 110 103 +7 0.0 -
2 Texas Red Line 119 119 119 ✓ Match 0.0
3 Musical Score 109 107 99 +8 6.0 -
4 Taegan's Champ 105 103 95 +8 6.0 -
5 That's My Baby 101 97 95 +2 0.0 -
6 Hotarubi 104 98 94 +4 3.0 -
99 Navajo Nation - 104 93 +11 3.0 -
99 Red Bomber - 86 95 -9 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