Official NHA Assessment

Race 6: RACING240 MR 92 HANDICAP (Open)

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Line Horse
All About Al
Reference for assessment
Exact Matches
1 / 7
Calculated = Official
Close Matches
2 / 7
Within 2 points
Significant Diffs
5 / 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    Dean Street          3    54.5    1    0.00     1.5   82    78           82    +0
2    Transact             3    54.0    2    1.50     1.5   81    77           77    -4
3    All About Al         7    58.5    3    1.70     0.0   89    89           89    +0
4    Barney Mcgrew        4    59.0    4    2.70     2.0   90    86           86    -4
5    Moon Rock            7    54.0    5    4.20     0.0   80    80           80    +0
6    Masked Vigilante     3    55.0    6    5.95     1.5   83    79           79    -4
7    His Choice           4    61.5    7    7.20     2.0   95    91           91    -4
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Dean Street 82 102 82 +20 1.5 -
2 Transact 81 77 77 ✓ Match 1.5 -
3 All About Al Line 89 78 89 -11 0.0
4 Barney Mcgrew 90 69 86 -17 2.0 -
5 Moon Rock 80 69 80 -11 0.0 -
6 Masked Vigilante 83 78 79 -1 1.5 -
7 His Choice 95 81 91 -10 2.0 -
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