Official NHA Assessment

Race 2: RACING240 CONDITIONS PLATE (F & M) (For Fillies and Mares)

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Line Horse
Unconquerable Lady
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
1 / 7
Within 2 points
Significant Diffs
4 / 7
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    Splicethemainbrace   3    58.5    1    0.00     6.0   108   86           86    -22
2    Unconquerable Lady   2    54.0    2    0.05     0.0   89    89           89    +0
3    Enchanting Choice    4    58.0    3    0.80     3.5   99    94           94    -5
4    State Secret         2    54.0    4    1.55     0.0   85    92           92    +7
5    Montelena            4    52.0    5    3.80     3.5   95    79           85    -10
6    Arabian Red          4    57.0    6    7.80     3.5   80    88           88    +8
7    Vulcanite            2    50.5    7    7.85     0.0   100   82           90    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Splicethemainbrace 108 108 86 +22 6.0 -
2 Unconquerable Lady Line 89 90 89 +1 0.0
3 Enchanting Choice 99 99 94 +5 3.5 -
4 State Secret 85 85 92 -7 0.0 -
5 Montelena 95 90 85 +5 3.5 -
6 Arabian Red 80 74 88 -14 3.5 -
7 Vulcanite 100 100 90 +10 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