Official NHA Assessment

Race 7: RH CONSTRUCTION & CONCRETE FLOORS FM 90 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Maquette
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
4 / 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    Calulo               4    54.5    1    0.00     6.0   84    77           84    +0
2    Amarandi             3    54.5    2    0.05     5.0   78    79           79    +1
3    Maquette             3    52.0    3    1.45     5.0   74    74           74    +0
4    Red Roses Too        5    55.0    4    1.95     0.0   87    90           90    +3
5    Warship              3    60.0    5    3.00     5.0   93    90           90    -3
6    Sabatini             2    58.0    6    3.25     3.5   93    89           89    -4
7    Vivid Jet            4    59.5    7    4.55     6.0   89    87           87    -2
8    Captain Ariano       4    52.0    8    6.55     6.0   69    72           72    +3
9    Sweet Symphony       3    55.5    9    6.85     5.0   81    81           81    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Calulo 84 88 84 +4 6.0 -
2 Amarandi 78 91 79 +12 5.0 -
3 Maquette Line 74 91 74 +17 5.0
4 Red Roses Too 87 82 90 -8 0.0 -
5 Warship 93 87 90 -3 5.0 -
6 Sabatini 93 91 89 +2 3.5 -
7 Vivid Jet 89 87 87 ✓ Match 6.0 -
8 Captain Ariano 69 63 72 -9 6.0 -
9 Sweet Symphony 81 86 81 +5 5.0 -
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