Official NHA Assessment

Race 5: RACEHORSE OWNERS ASSOCIATION MR 84 HANDICAP (Open)

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Line Horse
Rule Book
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
7 / 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    Breeze Over          5    58.5    1    0.00     0.0   83    81           83    +0
2    Absolute Value       3    55.5    2    0.20     8.5   75    58           65    -10
3    Flying First Class   4    60.0    3    7.50     5.0   84    74           74    -10
4    Rule Book            6    58.0    4    7.60     0.0   80    80           80    +0
5    Positive Attitude    6    58.5    5    12.00    0.0   81    81           81    +0
6    Afraad               8    57.0    6    12.75    0.0   78    78           78    +0
7    Libeccio             5    52.0    7    16.00    0.0   65    68           68    +3
8    Monsieur Chevelle    3    52.0    8    16.75    8.5   65    51           55    -10
9    Leao Alado           2    52.0    9    19.25    0.0   85    68           75    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Breeze Over 83 99 83 +16 0.0 -
2 Absolute Value 75 84 65 +19 8.5 -
3 Flying First Class 84 82 74 +8 5.0 -
4 Rule Book Line 80 92 80 +12 0.0
5 Positive Attitude 81 90 81 +9 0.0 -
6 Afraad 78 79 78 +1 0.0 -
7 Libeccio 65 62 68 -6 0.0 -
8 Monsieur Chevelle 65 63 55 +8 8.5 -
9 Leao Alado 85 77 75 +2 0.0 -
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