Official NHA Assessment

Race 6: GAUTENG GUINEAS DAY 1 FEBRUARY MR 98 DIVIDED HANDICAP (Open)

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Line Horse
Whafeef
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
5 / 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    Confederate          3    56.5    1    0.00     5.0   101   79           101   +0
2    Majestic Palace      3    54.0    2    0.75     5.0   86    78           78    -8
3    Vesuvio              5    52.5    3    2.65     0.0   86    83           83    -3
4    Whafeef              6    58.0    4    3.15     0.0   94    94           94    +0
5    Soldier's Eye        4    59.5    5    5.95     2.5   97    90           90    -7
6    Deception Pass       4    54.0    6    10.55    2.5   86    79           79    -7
7    We Are The Logans    2    56.0    7    27.75    0.0   90    88           88    -2
99   Argo Alley           2    60.0    99   0.00     0.0   -     96           96    +0
99   The Africa House     4    57.5    99   0.00     2.5   -     86           86    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Confederate 101 118 101 +17 5.0 -
2 Majestic Palace 86 90 78 +12 5.0 -
3 Vesuvio 86 85 83 +2 0.0 -
4 Whafeef Line 94 91 94 -3 0.0
5 Soldier's Eye 97 94 90 +4 2.5 -
6 Deception Pass 86 77 79 -2 2.5 -
7 We Are The Logans 90 73 88 -15 0.0 -
99 Argo Alley - 110 96 +14 0.0 -
99 The Africa House - 93 86 +7 2.5 -
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