Official NHA Assessment

Race 7: 4RACING.TV CONDITIONS PLATE (F & M) (For Fillies and Mares)

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Line Horse
Kayla's Champ
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
7 / 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    Mercury Rising       3    52.0    1    0.00     1.5   105   87           87    -18
2    Anna Capri           4    57.5    2    1.50     2.0   109   97           99    -10
3    Lucy English         3    51.5    3    4.25     1.5   91    86           86    -5
4    Kayla's Champ        5    58.5    4    4.50     0.0   103   103          103   +0
5    Alula's Star         3    54.0    5    7.00     1.5   99    91           91    -8
6    Arctic Skyline       3    50.0    6    38.00    1.5   77    83           83    +6
99   Mill Queen           5    55.5    99   0.00     0.0   -     97           97    +0
99   Winter Smoke         4    57.5    99   0.00     2.0   -     97           97    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Mercury Rising 105 106 87 +19 1.5 -
2 Anna Capri 109 107 99 +8 2.0 -
3 Lucy English 91 90 86 +4 1.5 -
4 Kayla's Champ Line 103 77 103 -26 0.0
5 Alula's Star 99 102 91 +11 1.5 -
6 Arctic Skyline 77 77 83 -6 1.5 -
99 Mill Queen - 90 97 -7 0.0 -
99 Winter Smoke - 112 97 +15 2.0 -
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