Official NHA Assessment

Race 7: RACEHORSE OWNERS ASSOCIATION NOVICE PLATE (Maidens & 1 time Winners)

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Line Horse
High Legislation
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
6 / 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    Russian Empire       5    57.5    1    0.00     0.0   71    72           70    -1
2    Kuznetsov            2    58.0    2    0.10     4.0   74    65           65    -9
3    Modern Magician      3    60.0    3    0.20     6.0   73    65           65    -8
4    Stay The Course      4    60.0    4    0.95     7.0   61    63           63    +2
5    Rainbow Thief        2    57.0    5    2.70     4.0   89    63           79    -10
6    High Legislation     3    60.0    6    3.20     6.0   65    65           65    +0
7    Admirals Chance      5    60.0    7    3.45     0.0   75    77           77    +2
8    Jaquar Cat           3    59.0    8    4.95     6.0   56    63           63    +7
9    Dog Detachment       4    60.0    9    11.45    7.0   62    63           63    +1
99   Gentleman            3    57.0    99   0.00     6.0   -     59           59    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Russian Empire 71 53 70 -17 0.0 -
2 Kuznetsov 74 61 65 -4 4.0 -
3 Modern Magician 73 56 65 -9 6.0 -
4 Stay The Course 61 67 63 +4 7.0 -
5 Rainbow Thief 89 71 79 -8 4.0 -
6 High Legislation Line 65 58 65 -7 6.0
7 Admirals Chance 75 77 77 ✓ Match 0.0 -
8 Jaquar Cat 56 46 63 -17 6.0 -
9 Dog Detachment 62 60 63 -3 7.0 -
99 Gentleman - 46 59 -13 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