Official NHA Assessment

Race 4: RACEHORSE OWNERS ASSOCIATION FM 89 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Daughter Of Zeus
Reference for assessment
Exact Matches
1 / 7
Calculated = Official
Close Matches
4 / 7
Within 2 points
Significant Diffs
0 / 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    Do Angels Cry        4    60.0    1    0.00     0.5   89    85           89    +0
2    Daughter Of Zeus     4    55.0    2    1.25     0.5   79    79           79    +0
3    Fusillade            4    58.5    3    1.65     0.5   86    85           85    -1
4    Celtic Night         4    59.5    4    3.15     0.5   88    86           86    -2
5    Duplicity            4    59.5    5    3.55     0.5   88    85           85    -3
6    Symphony Of Light    3    57.0    6    3.85     1.5   86    78           78    -8
7    Island Treasure      3    56.5    7    5.35     1.5   85    76           76    -9
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Do Angels Cry 89 89 89 ✓ Match 0.5 -
2 Daughter Of Zeus Line 79 82 79 +3 0.5
3 Fusillade 86 84 85 -1 0.5 -
4 Celtic Night 88 84 86 -2 0.5 -
5 Duplicity 88 87 85 +2 0.5 -
6 Symphony Of Light 86 75 78 -3 1.5 -
7 Island Treasure 85 73 76 -3 1.5 -
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