Official NHA Assessment

Race 11: TAB HAWAII STAKES (Grade 2) (Open)

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Line Horse
Texas Red
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
6 / 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    Main Defender        4    60.0    1    0.00     1.5   130   115          115   -15
2    Cosmic Speed         3    57.0    2    0.50     2.5   120   112          112   -8
3    Texas Red            5    58.0    3    3.50     0.0   115   115          115   +0
4    Fire 'N Flames       4    58.0    4    4.30     1.5   101   111          111   +10
5    Barbaresco           4    58.0    5    5.90     1.5   125   111          115   -10
6    Busstopinhounslow    3    55.0    6    6.15     2.5   104   103          103   -1
7    Gimmefabulous        3    52.5    7    6.25     2.5   102   98           98    -4
8    Slinky Mapimpi       5    58.0    8    16.75    0.0   97    114          114   +17
9    Gimmeanotherchance   4    58.0    9    21.00    1.5   109   111          111   +2
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Main Defender 130 130 115 +15 1.5 -
2 Cosmic Speed 120 122 112 +10 2.5 -
3 Texas Red Line 115 119 115 +4 0.0
4 Fire 'N Flames 101 103 111 -8 1.5 -
5 Barbaresco 125 116 115 +1 1.5 -
6 Busstopinhounslow 104 110 103 +7 2.5 -
7 Gimmefabulous 102 103 98 +5 2.5 -
8 Slinky Mapimpi 97 101 114 -13 0.0 -
9 Gimmeanotherchance 109 96 111 -15 1.5 -
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