Official NHA Assessment

Race 4: RACING240 MR 80 HANDICAP (Open)

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Line Horse
Aadehya
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
3 / 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    Kings Again          2    60.0    1    0.00     7.0   80    90           80    +0
2    Aadehya              4    57.5    2    1.25     12.0  75    75           75    +0
3    Swiss Walt           4    58.5    3    1.35     12.0  76    77           77    +1
4    Silvonian            3    59.0    4    2.10     10.5  78    81           81    +3
5    Chief Runner         3    55.5    5    2.85     10.5  71    74           74    +3
6    Indebe Mayibuye      3    61.0    6    5.10     10.5  82    85           85    +3
7    Larius Lacus         2    51.0    7    7.35     7.0   81    72           72    -9
8    Bethel               6    59.5    8    8.60     0.0   79    103          103   +24
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Kings Again 80 81 80 +1 7.0 -
2 Aadehya Line 75 71 75 -4 12.0
3 Swiss Walt 76 74 77 -3 12.0 -
4 Silvonian 78 86 81 +5 10.5 -
5 Chief Runner 71 59 74 -15 10.5 -
6 Indebe Mayibuye 82 79 85 -6 10.5 -
7 Larius Lacus 81 75 72 +3 7.0 -
8 Bethel 79 76 103 -27 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