Official NHA Assessment

Race 5: WSB 0860103393 BETTING LINE PINNACLE STAKES (Open to all horses)

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Line Horse
Big Burn
Reference for assessment
Exact Matches
1 / 12
Calculated = Official
Close Matches
1 / 12
Within 2 points
Significant Diffs
11 / 12
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    Big Burn             3    51.5    1    0.00     6.0   115   115          115   +0
2    Alesian Chief        3    62.0    2    0.15     6.0   123   136          136   +13
3    Bartholdi            4    60.0    3    2.25     7.0   119   130          130   +11
4    Winter Stories       4    58.0    4    2.50     7.0   113   126          126   +13
4    Vaseem               5    54.0    4    2.50     0.0   105   132          132   +27
6    Gallic Chief         3    52.5    6    2.75     6.0   100   117          117   +17
7    Bohica               5    62.0    7    3.90     0.0   125   148          148   +23
8    Eternity Ring        3    47.5    8    4.00     6.0   99    107          107   +8
9    Constable            5    52.0    9    4.50     0.0   98    128          128   +30
10   Smorgasbord          6    58.5    10   5.25     0.0   118   141          141   +23
11   Godswood             4    54.5    11   5.30     7.0   110   119          119   +9
12   Casa Inverno         3    51.5    12   12.00    6.0   104   115          115   +11
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Big Burn Line 115 115 115 ✓ Match 6.0
2 Alesian Chief 123 123 136 -13 6.0 -
3 Bartholdi 119 117 130 -13 7.0 -
4 Winter Stories 113 95 126 -31 7.0 -
4 Vaseem 105 94 132 -38 0.0 -
6 Gallic Chief 100 98 117 -19 6.0 -
7 Bohica 125 125 148 -23 0.0 -
8 Eternity Ring 99 80 107 -27 6.0 -
9 Constable 98 95 128 -33 0.0 -
10 Smorgasbord 118 77 141 -64 0.0 -
11 Godswood 110 106 119 -13 7.0 -
12 Casa Inverno 104 103 115 -12 6.0 -
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