Official NHA Assessment

Race 7: TAB GAUTENG GUINEAS (Grade 2) (For 3 year-olds (1st Leg SA Triple Crown))

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Line Horse
Bacchus
Reference for assessment
Exact Matches
1 / 13
Calculated = Official
Close Matches
1 / 13
Within 2 points
Significant Diffs
8 / 13
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    Parisian Walkway     3    60.0    1    0.00     4.0   101   101          101   +0
2    Greaterix            3    60.0    2    0.40     4.0   109   106          106   -3
3    Aristotle            3    60.0    3    4.20     4.0   94    102          102   +8
4    Legend Of Arthur     3    60.0    4    7.30     4.0   111   101          101   -10
5    Musical Score        3    60.0    5    8.55     4.0   100   101          101   +1
6    Bacchus              3    60.0    6    9.75     4.0   101   101          101   +0
7    Waheed               3    60.0    7    9.85     4.0   105   101          101   -4
8    Chestnut Bomber      3    60.0    8    11.85    4.0   106   101          101   -5
9    Dantonfromsandton    3    60.0    9    13.35    4.0   106   101          101   -5
10   Diwali Rocket        3    60.0    10   22.55    4.0   91    101          101   +10
11   Choisaanada          2    60.0    11   26.25    0.0   98    109          109   +11
99   Fire Attack          3    60.0    99   0.00     4.0   -     101          101   +0
99   Wild At War          3    60.0    99   0.00     4.0   -     101          101   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Parisian Walkway 101 113 101 +12 4.0 -
2 Greaterix 109 110 106 +4 4.0 -
3 Aristotle 94 106 102 +4 4.0 -
4 Legend Of Arthur 111 110 101 +9 4.0 -
5 Musical Score 100 107 101 +6 4.0 -
6 Bacchus Line 101 101 101 ✓ Match 4.0
7 Waheed 105 105 101 +4 4.0 -
8 Chestnut Bomber 106 90 101 -11 4.0 -
9 Dantonfromsandton 106 96 101 -5 4.0 -
10 Diwali Rocket 91 89 101 -12 4.0 -
11 Choisaanada 98 121 109 +12 0.0 -
99 Fire Attack - 124 101 +23 4.0 -
99 Wild At War - 92 101 -9 4.0 -
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