Official NHA Assessment

Race 4: WWW.TAB.CO.ZA PINNACLE STAKES (Open to all horses)

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Line Horse
Quantum Theory
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
3 / 7
Within 2 points
Significant Diffs
2 / 7
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    Dantonfromsandton    3    50.0    1    0.00     3.0   104   94           94    -10
2    Quantum Theory       5    54.0    2    1.75     0.0   108   108          108   +0
3    Alone Time           4    50.0    3    3.25     3.5   68    93           93    +25
4    Chocolate Soldier    3    56.0    4    3.65     3.0   114   106          106   -8
5    Passage Of Power     6    50.0    5    10.75    0.0   95    100          100   +5
99   Ready To Charge      2    56.0    99   0.00     2.0   -     108          108   +0
99   Cousin Casey         2    62.0    99   0.00     2.0   -     120          120   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Dantonfromsandton 104 96 94 +2 3.0 -
2 Quantum Theory Line 108 112 108 +4 0.0
3 Alone Time 68 68 93 -25 3.5 -
4 Chocolate Soldier 114 108 106 +2 3.0 -
5 Passage Of Power 95 76 100 -24 0.0 -
99 Ready To Charge - 110 108 +2 2.0 -
99 Cousin Casey - 125 120 +5 2.0 -
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