Official NHA Assessment

Race 5: RACEHORSE OWNERS ASSOCIATION MR 80 HANDICAP (Open)

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Line Horse
Fifth Of July
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
6 / 8
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    Elusive Swann        4    60.0    1    0.00     0.5   80    72           80    +0
2    Fifth Of July        5    58.5    2    0.50     0.0   77    77           77    +0
3    Vengeance Forever    3    54.0    3    1.20     1.5   70    64           64    -6
4    Spin Doctor          3    58.5    4    1.60     1.5   80    72           72    -8
5    Banha Bridge         5    54.0    5    1.95     0.0   68    66           66    -2
6    Afraad               8    60.5    6    2.00     0.0   81    79           79    -2
7    Great Affair         7    61.5    7    3.45     0.0   83    79           79    -4
8    The Brief            3    54.5    8    3.50     1.5   72    62           62    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Elusive Swann 80 72 80 -8 0.5 -
2 Fifth Of July Line 77 63 77 -14 0.0
3 Vengeance Forever 70 51 64 -13 1.5 -
4 Spin Doctor 80 90 72 +18 1.5 -
5 Banha Bridge 68 70 66 +4 0.0 -
6 Afraad 81 79 79 ✓ Match 0.0 -
7 Great Affair 83 63 79 -16 0.0 -
8 The Brief 72 90 62 +28 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