Official NHA Assessment

Race 3: WWW.TAB4RACING.COM MIDDLE STAKES (For horses with nett rating of 101 and below)

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Line Horse
Tsar Bomba
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    Silver Tudor         5    54.0    1    0.00     0.0   86    92           92    +6
2    Fostinovo            3    56.0    2    0.80     2.5   89    91           91    +2
3    Tsar Bomba           3    58.0    3    2.80     2.5   95    95           95    +0
4    Dancetildaylight     3    58.5    4    5.00     2.5   95    96           96    +1
5    Ikigai               8    57.5    5    5.75     0.0   96    99           99    +3
6    River Queraress      2    58.5    6    6.25     1.5   100   98           98    -2
7    Ocean Warrior        3    62.0    7    8.50     2.5   100   103          103   +3
99   Texas Red            5    58.0    99   0.00     0.0   -     100          100   +0
99   Moonshiningthrough   3    58.0    99   0.00     2.5   -     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 Silver Tudor 86 99 92 +7 0.0 -
2 Fostinovo 89 80 91 -11 2.5 -
3 Tsar Bomba Line 95 91 95 -4 2.5
4 Dancetildaylight 95 92 96 -4 2.5 -
5 Ikigai 96 91 99 -8 0.0 -
6 River Queraress 100 88 98 -10 1.5 -
7 Ocean Warrior 100 95 103 -8 2.5 -
99 Texas Red - 119 100 +19 0.0 -
99 Moonshiningthrough - 96 95 +1 2.5 -
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