Official NHA Assessment

Race 7: GALLOP FORM CLASS 4 (F & M) (For Fillies & Mares. Benchmark at 60.0kg = 80)

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Line Horse
Prankster
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
7 / 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    Dark Matter          2    55.0    1    0.00     7.0   84    70           70    -14
2    Moscow Miss          2    50.0    2    3.10     7.0   79    60           69    -10
3    Prankster            2    53.0    3    4.10     7.0   66    66           66    +0
4    Ayuwi Yuwi           2    60.5    4    4.60     7.0   81    81           81    +0
5    Happy Analia         4    56.0    5    5.00     12.0  80    62           70    -10
6    Are You Sure         2    57.5    6    5.70     7.0   75    75           75    +0
7    Miss Kansas          3    55.5    7    6.40     10.5  74    64           64    -10
8    Icy Lancaster        3    58.5    8    6.45     10.5  77    70           70    -7
9    Mist In Ireland      3    56.0    9    17.45    10.5  72    65           65    -7
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Dark Matter 84 92 70 +22 7.0 -
2 Moscow Miss 79 72 69 +3 7.0 -
3 Prankster Line 66 69 66 +3 7.0
4 Ayuwi Yuwi 81 71 81 -10 7.0 -
5 Happy Analia 80 78 70 +8 12.0 -
6 Are You Sure 75 64 75 -11 7.0 -
7 Miss Kansas 74 72 64 +8 10.5 -
8 Icy Lancaster 77 76 70 +6 10.5 -
9 Mist In Ireland 72 72 65 +7 10.5 -
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