Official NHA Assessment

Race 5: WWW.TAB4RACING.COM MIDDLE STAKES (For horses with nett rating of 92 and below)

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Line Horse
Flying First Class
Reference for assessment
Exact Matches
1 / 6
Calculated = Official
Close Matches
1 / 6
Within 2 points
Significant Diffs
4 / 6
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    Raiseahallelujah     7    60.0    1    0.00     0.0   88    107          94    +6
2    Flying First Class   4    53.5    2    0.20     8.0   78    78           78    +0
3    Arlington Action     6    48.5    3    1.90     0.0   70    88           88    +18
4    Lamborghreeni        3    52.0    4    2.25     10.5  74    74           74    +0
5    The Kop              4    58.5    5    7.75     8.0   89    88           88    -1
99   Viceroy              4    46.0    99   0.00     8.0   -     63           63    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Raiseahallelujah 88 103 94 +9 0.0 -
2 Flying First Class Line 78 82 78 +4 8.0
3 Arlington Action 70 73 88 -15 0.0 -
4 Lamborghreeni 74 74 74 ✓ Match 10.5 -
5 The Kop 89 78 88 -10 8.0 -
99 Viceroy - 55 63 -8 8.0 -
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