Official NHA Assessment

Race 7: TAB SA CLASSIC (Grade 1) (For 3 year-olds (2nd Leg of SA Triple Crown))

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Line Horse
Legend Of Arthur
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
5 / 11
Within 2 points
Significant Diffs
5 / 11
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    Confederate          3    60.0    1    0.00     4.5   107   108          108   +1
2    Fire Attack          3    60.0    2    0.70     4.5   111   113          113   +2
3    Legend Of Arthur     3    60.0    3    4.10     4.5   109   109          109   +0
4    Grey Jet             3    60.0    4    4.50     4.5   96    108          108   +12
5    Parisian Walkway     3    60.0    5    5.00     4.5   121   108          111   -10
6    Busstopinhounslow    3    60.0    6    6.50     4.5   95    108          108   +13
7    Miss Scaletta        3    57.5    7    6.80     4.5   98    103          103   +5
8    Chestnut Bomber      3    60.0    8    7.50     4.5   106   108          108   +2
9    Aristotle            3    60.0    9    8.30     4.5   113   108          108   -5
10   Bacchus              3    60.0    10   9.40     4.5   101   108          108   +7
11   Don't Cry For Me     3    60.0    11   14.00    4.5   101   108          108   +7
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Confederate 107 118 108 +10 4.5 -
2 Fire Attack 111 124 113 +11 4.5 -
3 Legend Of Arthur Line 109 110 109 +1 4.5
4 Grey Jet 96 108 108 ✓ Match 4.5 -
5 Parisian Walkway 121 113 111 +2 4.5 -
6 Busstopinhounslow 95 110 108 +2 4.5 -
7 Miss Scaletta 98 96 103 -7 4.5 -
8 Chestnut Bomber 106 90 108 -18 4.5 -
9 Aristotle 113 106 108 -2 4.5 -
10 Bacchus 101 101 108 -7 4.5 -
11 Don't Cry For Me 101 103 108 -5 4.5 -
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