Official NHA Assessment

Race 3: BETWAY AVIATOR MAIDEN PLATE (3 year-old Fillies) (For Maiden 3yo F R15 000 WIN BONUS RA MEMBERS)

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Line Horse
Annewithan E
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
2 / 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    Champagne Cocktail   4    60.0    1    0.00     6.0   -     64           6     +6
2    Azaleas For All      4    60.0    2    7.50     6.0   71    64           64    -7
3    Annewithan E         2    60.0    3    7.75     0.0   76    76           76    +0
4    Heart Peaks          4    60.0    4    8.00     6.0   86    64           76    -10
5    Crystal Maiden       4    60.0    5    9.25     6.0   -     64           64    +64
6    Outer Dimension      2    60.0    6    12.75    0.0   75    76           76    +1
7    Racing Pigeon        2    58.5    7    20.50    0.0   65    73           73    +8
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Champagne Cocktail - 98 6 +92 6.0 -
2 Azaleas For All 71 82 64 +18 6.0 -
3 Annewithan E Line 76 74 76 -2 0.0
4 Heart Peaks 86 89 76 +13 6.0 -
5 Crystal Maiden - 66 64 +2 6.0 -
6 Outer Dimension 75 70 76 -6 0.0 -
7 Racing Pigeon 65 59 73 -14 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