Official NHA Assessment

Race 8: YARD INSURANCE GRADUATION PLATE (For Maidens, 1 & 2 Time Winners)

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Line Horse
Chestnut Bomber
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
1 / 11
Within 2 points
Significant Diffs
8 / 11
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    Count Huhtikuu       3    60.0    1    0.00     8.5   95    96           78    -17
2    Solar Sail           3    60.0    2    1.30     8.5   115   99           105   -10
3    Parisian Walkway     3    60.0    3    1.35     8.5   119   99           109   -10
4    Pumpkin Pie          3    60.0    4    1.40     8.5   92    99           99    +7
5    Chestnut Bomber      3    59.5    5    2.40     8.5   97    97           97    +0
6    Cocomelon            3    50.0    6    3.65     8.5   105   77           95    -10
7    Gerbera              3    57.0    7    3.95     8.5   98    91           91    -7
8    Dance King           2    58.5    8    5.05     0.0   89    110          110   +21
9    Beynac               2    56.5    9    5.35     0.0   86    106          106   +20
10   Phil The Fluter      2    59.5    10   6.75     0.0   83    112          112   +29
99   Mister Speaker       3    56.5    99   0.00     8.5   -     89           89    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Count Huhtikuu 95 101 78 +23 8.5 -
2 Solar Sail 115 109 105 +4 8.5 -
3 Parisian Walkway 119 113 109 +4 8.5 -
4 Pumpkin Pie 92 92 99 -7 8.5 -
5 Chestnut Bomber Line 97 90 97 -7 8.5
6 Cocomelon 105 80 95 -15 8.5 -
7 Gerbera 98 98 91 +7 8.5 -
8 Dance King 89 89 110 -21 0.0 -
9 Beynac 86 90 106 -16 0.0 -
10 Phil The Fluter 83 83 112 -29 0.0 -
99 Mister Speaker - 91 89 +2 8.5 -
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