Official NHA Assessment

Race 1: 4RACING WELCOMES YOU MAIDEN PLATE (3-year-olds) (For Maiden 3-year-olds)

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Line Horse
Slender Silhouette
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
9 / 9
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    Warm Reception       3    57.5    1    0.00     10.5  -     -7           -     +0
2    Never Never Land     3    60.0    2    4.00     10.5  -     -2           -     +0
3    Slender Silhouette   2    57.5    3    4.40     7.0   -     -            -     +0
4    Lanteri              3    55.0    4    7.50     10.5  -     -12          -     +0
5    Kavomolka            2    60.0    5    8.25     7.0   -     5            5     +5
6    Actuary              3    60.0    6    9.25     10.5  -     -2           -     +0
7    Jet O War            3    60.0    7    11.50    10.5  -     -2           -     +0
8    Frankie Fahrenheit   2    56.0    8    18.50    7.0   -     -3           -     +0
99   Explosive Charm      3    57.5    99   0.00     10.5  -     -7           -7    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Warm Reception - 100 - +100 10.5 -
2 Never Never Land - 85 - +85 10.5 -
3 Slender Silhouette Line - 77 - +77 7.0
4 Lanteri - 69 - +69 10.5 -
5 Kavomolka - 76 5 +71 7.0 -
6 Actuary - 76 - +76 10.5 -
7 Jet O War - 52 - +52 10.5 -
8 Frankie Fahrenheit - 63 - +63 7.0 -
99 Explosive Charm - 55 -7 +62 10.5 -
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