Official NHA Assessment

Race 6: TAB 4RACING APP MR 96 HANDICAP (Open)

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Line Horse
Cliff Hanger
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
10 / 10
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    Ziyasha              2    59.0    1    0.00     3.5   104   101          104   +0
2    Cliff Hanger         2    61.0    2    4.25     3.5   105   105          105   +0
3    Cosmic Star          3    58.5    3    4.30     5.0   93    97           97    +4
4    Esquevelle           3    57.5    4    6.00     5.0   91    95           95    +4
5    Ragnar Lothbrok      3    56.0    5    7.25     5.0   88    92           92    +4
6    Qhawe Lami           4    57.0    6    9.50     6.0   97    92           92    -5
7    Tchaikovsky          6    56.5    7    9.55     0.0   89    103          103   +14
8    Daring Act           4    53.0    8    10.25    6.0   89    84           84    -5
99   Wind Water           3    57.5    99   0.00     5.0   -     95           95    +0
99   Captain Dizzy        4    56.0    99   0.00     6.0   -     90           90    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Ziyasha 104 118 104 +14 3.5 -
2 Cliff Hanger Line 105 111 105 +6 3.5
3 Cosmic Star 93 105 97 +8 5.0 -
4 Esquevelle 91 86 95 -9 5.0 -
5 Ragnar Lothbrok 88 81 92 -11 5.0 -
6 Qhawe Lami 97 80 92 -12 6.0 -
7 Tchaikovsky 89 81 103 -22 0.0 -
8 Daring Act 89 60 84 -24 6.0 -
99 Wind Water - 89 95 -6 5.0 -
99 Captain Dizzy - 96 90 +6 6.0 -
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