Official NHA Assessment

Race 8: NEXT VAAL RACEMEETING THURSDAY 5 FEBRUARY MR 84 HANDICAP (Open)

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Line Horse
African Prince
Reference for assessment
Exact Matches
1 / 13
Calculated = Official
Close Matches
4 / 13
Within 2 points
Significant Diffs
3 / 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    Vibe Sa              2    60.0    1    0.00     3.5   84    87           84    +0
2    African Prince       3    59.5    2    3.50     5.0   83    83           83    +0
3    Ensuing              2    62.0    3    3.70     3.5   88    91           91    +3
4    Antonio Gaudi        2    59.0    4    5.50     3.5   82    85           85    +3
5    Drivelikeamaster     3    58.5    5    6.25     5.0   81    81           81    +0
6    Halberdier           4    58.0    6    6.50     6.0   80    78           78    -2
7    Cian The Conqueror   5    59.5    7    8.25     0.0   83    93           93    +10
8    Satyagraha           3    60.0    8    8.75     5.0   84    84           84    +0
9    Kwagga Blitz         2    58.0    9    9.25     3.5   80    83           83    +3
10   Red Penny            2    58.0    10   9.75     3.5   87    83           83    -4
11   Phil The Fluter      2    59.5    11   15.00    3.5   83    86           86    +3
12   Fully Loaded         5    59.5    12   15.25    0.0   88    93           93    +5
99   Golden Operator      2    58.0    99   0.00     3.5   -     83           83    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Vibe Sa 84 92 84 +8 3.5 -
2 African Prince Line 83 85 83 +2 5.0
3 Ensuing 88 87 91 -4 3.5 -
4 Antonio Gaudi 82 82 85 -3 3.5 -
5 Drivelikeamaster 81 81 81 ✓ Match 5.0 -
6 Halberdier 80 83 78 +5 6.0 -
7 Cian The Conqueror 83 81 93 -12 0.0 -
8 Satyagraha 84 78 84 -6 5.0 -
9 Kwagga Blitz 80 79 83 -4 3.5 -
10 Red Penny 87 85 83 +2 3.5 -
11 Phil The Fluter 83 83 86 -3 3.5 -
12 Fully Loaded 88 94 93 +1 0.0 -
99 Golden Operator - 87 83 +4 3.5 -
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