Official NHA Assessment

Race 4: TAB 4RACING APP MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Country Flame
Reference for assessment
Exact Matches
0 / 6
Calculated = Official
Close Matches
0 / 6
Within 2 points
Significant Diffs
5 / 6
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    Angelofthemorning    3    60.0    1    0.00     2.5   -     61           6     +6
2    Quest from Afar      3    60.0    2    2.50     2.5   73    63           63    -10
3    Country Flame        3    60.0    3    7.00     2.5   61    61           61    +0
4    Song Of Angels       3    60.0    4    10.25    2.5   47    61           61    +14
5    Plum Volante         4    60.0    5    15.00    1.0   40    64           64    +24
6    Jane Wilson          3    60.0    6    20.00    2.5   58    61           61    +3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Angelofthemorning - 48 6 +42 2.5 -
2 Quest from Afar 73 67 63 +4 2.5 -
3 Country Flame Line 61 54 61 -7 2.5
4 Song Of Angels 47 44 61 -17 2.5 -
5 Plum Volante 40 44 64 -20 1.0 -
6 Jane Wilson 58 40 61 -21 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