Official NHA Assessment

Race 8: FOR HOSPITALITY BOOKINGS CALL 011 681 1796 MR 106 HANDICAP (Open)

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Line Horse
Quantum Theory
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
3 / 9
Within 2 points
Significant Diffs
4 / 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    Mount Pinatubo       2    59.5    1    0.00     1.5   108   102          108   +0
2    Quantum Theory       5    61.0    2    0.80     0.0   108   108          108   +0
3    Troppo Veloce        2    60.0    3    3.00     1.5   106   103          103   -3
4    Dreamland            4    61.5    4    3.40     0.0   109   109          109   +0
5    Tchaikovsky          6    52.0    5    4.60     0.0   81    90           90    +9
6    Sheldon              6    61.0    6    4.85     0.0   108   108          108   +0
7    Cosmic Star          3    60.0    7    5.75     2.5   106   101          101   -5
8    Magic Tattoo         5    58.0    8    10.00    0.0   102   102          102   +0
99   Bob's Your Uncle     5    55.5    99   0.00     0.0   -     97           97    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Mount Pinatubo 108 109 108 +1 1.5 -
2 Quantum Theory Line 108 112 108 +4 0.0
3 Troppo Veloce 106 104 103 +1 1.5 -
4 Dreamland 109 103 109 -6 0.0 -
5 Tchaikovsky 81 81 90 -9 0.0 -
6 Sheldon 108 106 108 -2 0.0 -
7 Cosmic Star 106 105 101 +4 2.5 -
8 Magic Tattoo 102 93 102 -9 0.0 -
99 Bob's Your Uncle - 103 97 +6 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