Official NHA Assessment

Race 7: TAB TELEBET 0861 000 822 MIDDLE STAKES (For horses with nett rating of 101 and below)

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Line Horse
Cosmic Star
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
8 / 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    Cosmic Star          3    56.0    1    0.00     6.0   88    88           88    +0
2    Back In Business     3    58.0    2    3.25     6.0   90    92           92    +2
3    Bold Act             3    58.5    3    4.50     6.0   96    93           93    -3
4    Ragnar Lothbrok      3    58.0    4    5.00     6.0   90    92           92    +2
5    Aussenkehr           2    62.0    5    5.50     4.0   101   104          104   +3
6    Pontiac              3    50.5    6    5.75     6.0   80    77           77    -3
7    Midnight Gem         4    56.5    7    7.50     7.0   90    87           87    -3
8    Fire 'N Flames       4    54.0    8    9.00     7.0   100   82           90    -10
99   Barbaresco           4    54.0    99   0.00     7.0   -     82           82    +0
99   Raven Black          2    58.0    99   0.00     4.0   -     96           96    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Cosmic Star Line 88 105 88 +17 6.0
2 Back In Business 90 114 92 +22 6.0 -
3 Bold Act 96 77 93 -16 6.0 -
4 Ragnar Lothbrok 90 81 92 -11 6.0 -
5 Aussenkehr 101 79 104 -25 4.0 -
6 Pontiac 80 79 77 +2 6.0 -
7 Midnight Gem 90 81 87 -6 7.0 -
8 Fire 'N Flames 100 103 90 +13 7.0 -
99 Barbaresco - 116 82 +34 7.0 -
99 Raven Black - 99 96 +3 4.0 -
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