Official NHA Assessment

Race 2: WWW.TAB4RACING.COM GRADUATION PLATE (For Maidens, 1 & 2 Time Winners)

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Line Horse
The Africa House
Reference for assessment
Exact Matches
1 / 7
Calculated = Official
Close Matches
1 / 7
Within 2 points
Significant Diffs
5 / 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    Buffalo Storm Cody   3    57.0    1    0.00     3.5   96    88           78    -18
2    The Africa House     4    60.0    2    8.25     4.0   93    93           93    +0
3    Musical Score        3    60.0    3    8.75     3.5   104   94           94    -10
4    Biofarmer            4    60.0    4    10.75    4.0   94    93           93    -1
5    Vitellius            5    57.0    5    11.50    0.0   71    95           95    +24
6    Grand Crescendo      3    60.0    6    16.75    3.5   114   94           104   -10
99   Stroke Of Mercy      5    51.5    99   0.00     0.0   -     84           84    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Buffalo Storm Cody 96 132 78 +54 3.5 -
2 The Africa House Line 93 93 93 ✓ Match 4.0
3 Musical Score 104 107 94 +13 3.5 -
4 Biofarmer 94 78 93 -15 4.0 -
5 Vitellius 71 73 95 -22 0.0 -
6 Grand Crescendo 114 107 104 +3 3.5 -
99 Stroke Of Mercy - 52 84 -32 0.0 -
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