Official NHA Assessment

Race 5: NEW TURF CARRIERS MERCHANTS (Grade 3) (Open)

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Line Horse
Quantum Theory
Reference for assessment
Exact Matches
3 / 15
Calculated = Official
Close Matches
5 / 15
Within 2 points
Significant Diffs
10 / 15
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    Pistol Pete          3    57.5    1    0.00     7.5   113   98           98    -15
2    Cosmic Star          3    52.0    2    0.70     7.5   100   87           90    -10
3    Charming Cheetah     2    52.0    3    2.90     5.0   107   92           97    -10
4    Quantum Theory       5    57.5    4    3.30     0.0   113   113          113   +0
5    Future Variety       4    59.0    5    3.60     9.0   116   98           106   -10
6    Truth                2    60.5    6    3.70     5.0   119   109          109   -10
7    Barbaresco           4    61.0    7    4.70     9.0   120   102          110   -10
8    Melech               5    60.0    8    4.95     0.0   118   118          118   +0
9    Dantonfromsandton    3    54.5    9    7.35     7.5   106   92           96    -10
10   Connery              4    52.0    10   9.65     9.0   99    84           89    -10
11   Slinky Mapimpi       5    52.0    11   11.05    0.0   100   102          102   +2
12   African Pride        2    52.0    12   11.35    5.0   104   92           94    -10
13   Fire 'N Flames       4    53.5    13   11.85    9.0   105   87           95    -10
14   Sheldon              6    54.0    14   12.25    0.0   106   106          106   +0
99   Nyaka Nyaka          2    52.0    99   0.00     5.0   -     92           92    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Pistol Pete 113 118 98 +20 7.5 -
2 Cosmic Star 100 105 90 +15 7.5 -
3 Charming Cheetah 107 106 97 +9 5.0 -
4 Quantum Theory Line 113 112 113 -1 0.0
5 Future Variety 116 116 106 +10 9.0 -
6 Truth 119 120 109 +11 5.0 -
7 Barbaresco 120 116 110 +6 9.0 -
8 Melech 118 118 118 ✓ Match 0.0 -
9 Dantonfromsandton 106 96 96 ✓ Match 7.5 -
10 Connery 99 96 89 +7 9.0 -
11 Slinky Mapimpi 100 101 102 -1 0.0 -
12 African Pride 104 103 94 +9 5.0 -
13 Fire 'N Flames 105 103 95 +8 9.0 -
14 Sheldon 106 106 106 ✓ Match 0.0 -
99 Nyaka Nyaka - 101 92 +9 5.0 -
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