Official NHA Assessment

Race 5: BETWAY AVIATOR MAIDEN PLATE (F & M) (For Maiden F&M. R15 000 Win bonus ROA Members)

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Line Horse
The Work Of Life
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
8 / 10
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    Ariel's Jet          3    57.0    1    0.00     8.5   -     56           6     +6
2    United We Stand      3    60.0    2    2.50     8.5   60    64           64    +4
3    The Work Of Life     3    60.0    3    3.25     8.5   64    64           64    +0
4    Villa Semaya         2    57.0    4    3.75     0.0   77    74           74    -3
5    Angel Of My Heart    3    57.0    5    7.75     8.5   -     56           56    +56
6    Crimson Forest       3    57.0    6    9.75     8.5   -     56           56    +56
7    Boom Boom            4    57.0    7    14.75    6.0   63    61           61    -2
8    Wild Willow          3    60.0    8    16.00    8.5   40    62           62    +22
9    Enchanted Royal      3    57.0    9    16.75    8.5   -     56           56    +56
10   Lady Sureyya         3    57.0    10   26.00    8.5   -     56           56    +56
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Ariel's Jet - 69 6 +63 8.5 -
2 United We Stand 60 50 64 -14 8.5 -
3 The Work Of Life Line 64 59 64 -5 8.5
4 Villa Semaya 77 59 74 -15 0.0 -
5 Angel Of My Heart - 51 56 -5 8.5 -
6 Crimson Forest - 71 56 +15 8.5 -
7 Boom Boom 63 81 61 +20 6.0 -
8 Wild Willow 40 38 62 -24 8.5 -
9 Enchanted Royal - 49 56 -7 8.5 -
10 Lady Sureyya - 42 56 -14 8.5 -
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