Official NHA Assessment

Race 9: RACING240 FOR RACING. FOR YOU MIDDLE STAKES (For horses with nett rating of 101 and below)

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Line Horse
Silver Tudor
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
9 / 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    Tsar Bomba           3    58.0    1    0.00     4.5   92    82           82    -10
2    Silver Tudor         5    58.0    2    1.50     0.0   91    91           91    +0
3    Amber Rock           2    52.5    3    2.50     3.0   89    74           79    -10
4    Ice Star             2    56.5    4    4.10     3.0   98    82           88    -10
5    Max The Magician     4    56.0    5    7.20     5.0   93    77           83    -10
6    Suryavarman          2    58.0    6    7.50     3.0   90    85           85    -5
7    Prophet              2    58.0    7    13.80    3.0   100   85           90    -10
8    Mount Pilatus        4    58.0    8    14.00    5.0   96    81           86    -10
99   Celestial City       4    58.0    99   0.00     5.0   -     81           81    +0
99   Tchaikovsky          6    56.0    99   0.00     0.0   -     87           87    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Tsar Bomba 92 91 82 +9 4.5 -
2 Silver Tudor Line 91 99 91 +8 0.0
3 Amber Rock 89 86 79 +7 3.0 -
4 Ice Star 98 112 88 +24 3.0 -
5 Max The Magician 93 95 83 +12 5.0 -
6 Suryavarman 90 84 85 -1 3.0 -
7 Prophet 100 66 90 -24 3.0 -
8 Mount Pilatus 96 113 86 +27 5.0 -
99 Celestial City - 92 81 +11 5.0 -
99 Tchaikovsky - 81 87 -6 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