Official NHA Assessment

Race 6: RACEHORSE OWNERS ASSOCIATION FM 74 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Little Doe
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
2 / 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    Nippy Winter         3    58.0    1    0.00     4.5   76    71           76    +0
2    Little Doe           4    54.5    2    0.75     5.0   63    63           63    +0
3    Fly To Rio           4    53.5    3    2.00     5.0   61    61           61    +0
4    Trip to Ireland      3    56.0    4    4.25     4.5   72    67           67    -5
5    Magnetic Dime        4    59.0    5    4.65     5.0   72    72           72    +0
6    Apollo Moon          3    57.5    6    4.85     4.5   75    70           70    -5
7    Super Siri           3    58.5    7    5.05     4.5   77    72           72    -5
8    Veronique            6    58.0    8    5.25     0.0   76    80           80    +4
9    Margin Call          3    58.5    9    7.50     4.5   80    72           72    -8
10   Impressive Queen     3    57.0    10   8.50     4.5   74    69           69    -5
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Nippy Winter 76 66 76 -10 4.5 -
2 Little Doe Line 63 65 63 +2 5.0
3 Fly To Rio 61 54 61 -7 5.0 -
4 Trip to Ireland 72 69 67 +2 4.5 -
5 Magnetic Dime 72 78 72 +6 5.0 -
6 Apollo Moon 75 63 70 -7 4.5 -
7 Super Siri 77 63 72 -9 4.5 -
8 Veronique 76 56 80 -24 0.0 -
9 Margin Call 80 63 72 -9 4.5 -
10 Impressive Queen 74 59 69 -10 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