Official NHA Assessment

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

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Line Horse
None identified
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
8 / 9
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    By Royal Command     3    60.0    1    0.00     10.5  -     -            -     +0
2    Helen's Legacy       2    58.0    2    0.05     7.0   -     -            -     +0
3    I'll Slip Away       2    58.0    3    0.55     7.0   -     -            -     +0
4    Chililabombwe        3    58.0    4    1.55     10.5  -     -            -     +0
5    Strawberry Light     3    58.0    5    2.80     10.5  -     -            -     +0
6    Coastal Blues        2    58.0    6    5.05     7.0   -     -            -     +0
7    Chiquita Banana      3    58.0    7    5.80     10.5  -     -            -     +0
8    St Kitts             2    58.0    8    5.85     7.0   75    -            68    -7
9    The Agents Muse      2    58.0    9    99.99    7.0   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 By Royal Command - 50 - +50 10.5 -
2 Helen's Legacy - 71 - +71 7.0 -
3 I'll Slip Away - 51 - +51 7.0 -
4 Chililabombwe - 64 - +64 10.5 -
5 Strawberry Light - 74 - +74 10.5 -
6 Coastal Blues - 54 - +54 7.0 -
7 Chiquita Banana - 64 - +64 10.5 -
8 St Kitts 75 63 68 -5 7.0 -
9 The Agents Muse - 64 - +64 7.0 -
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