Official NHA Assessment

Race 5: CHAMPION HORSE OF THE SEASON: FIRE ATTACK FM 64 APPRENTICE HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Patches Of Grey
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
2 / 8
Within 2 points
Significant Diffs
5 / 8
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    Teo Torriatte        4    57.5    1    0.00     1.0   67    64           67    +0
2    Patches Of Grey      4    57.5    2    7.00     1.0   64    64           64    +0
3    Silver Flare         4    53.5    3    7.60     1.0   56    56           56    +0
4    Lady Noir            2    59.5    4    10.90    0.0   86    70           76    -10
5    Count Your Chances   5    53.5    5    13.10    0.0   59    58           58    -1
6    Lunar Rainbow        3    54.0    6    14.20    2.0   64    55           55    -9
7    Northern Kitten      3    51.5    7    99.99    2.0   55    50           50    -5
99   Angel's Wish         6    54.0    99   0.00     0.0   -     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 Teo Torriatte 67 94 67 +27 1.0 -
2 Patches Of Grey Line 64 62 64 -2 1.0
3 Silver Flare 56 64 56 +8 1.0 -
4 Lady Noir 86 83 76 +7 0.0 -
5 Count Your Chances 59 51 58 -7 0.0 -
6 Lunar Rainbow 64 57 55 +2 2.0 -
7 Northern Kitten 55 67 50 +17 2.0 -
99 Angel's Wish - 54 59 -5 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