Official NHA Assessment

Race 7: WORLD SPORTS BETTING SPOOK EXPRESS STAKES (Listed) (Fillies and Mares)

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Line Horse
Red Maple
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
8 / 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    Red Maple            3    50.0    1    0.00     4.5   80    80           80    +0
2    Kind Judy            4    54.0    2    0.25     1.5   81    94           94    +13
3    Apache Fighter       4    54.0    3    1.40     1.5   81    99           99    +18
4    Light Of The Moon    3    62.0    4    5.75     4.5   109   104          104   -5
5    Flying First Class   4    56.0    5    7.50     1.5   89    98           98    +9
6    Electric Surge       5    54.0    6    11.50    0.0   80    97           97    +17
7    Perfect Witness      3    60.0    7    12.00    4.5   99    100          100   +1
8    Opera Glass          4    56.0    8    13.75    1.5   85    98           98    +13
9    Maith An Cailin      2    50.0    9    15.00    0.0   70    89           89    +19
10   Quiet Rebellion      3    52.5    10   99.97    4.5   76    85           85    +9
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Red Maple Line 80 107 80 +27 4.5
2 Kind Judy 81 73 94 -21 1.5 -
3 Apache Fighter 81 81 99 -18 1.5 -
4 Light Of The Moon 109 107 104 +3 4.5 -
5 Flying First Class 89 82 98 -16 1.5 -
6 Electric Surge 80 83 97 -14 0.0 -
7 Perfect Witness 99 105 100 +5 4.5 -
8 Opera Glass 85 81 98 -17 1.5 -
9 Maith An Cailin 70 68 89 -21 0.0 -
10 Quiet Rebellion 76 74 85 -11 4.5 -
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