Official NHA Assessment

Race 5: TAB 4RACING APP FM 82 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
State Secret
Reference for assessment
Exact Matches
2 / 9
Calculated = Official
Close Matches
3 / 9
Within 2 points
Significant Diffs
4 / 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    Green Isle           2    55.0    1    0.00     0.0   72    70           72    +0
2    State Secret         2    60.0    2    1.75     0.0   83    83           83    +0
3    Twilight Bay         2    55.0    3    3.00     0.0   72    72           72    +0
4    Three Cheers         3    56.5    4    3.75     9.0   76    56           66    -10
5    Shampimpi            4    56.0    5    4.25     7.0   74    59           64    -10
6    Got The Fever        2    57.0    6    4.35     0.0   77    74           74    -3
7    Umzolozolo           2    57.5    7    7.10     0.0   78    75           75    -3
8    Ms Patty             3    57.0    8    12.60    9.0   77    56           67    -10
99   Bosnay               4    59.5    99   0.00     7.0   -     65           65    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Green Isle 72 77 72 +5 0.0 -
2 State Secret Line 83 85 83 +2 0.0
3 Twilight Bay 72 72 72 ✓ Match 0.0 -
4 Three Cheers 76 79 66 +13 9.0 -
5 Shampimpi 74 70 64 +6 7.0 -
6 Got The Fever 77 70 74 -4 0.0 -
7 Umzolozolo 78 75 75 ✓ Match 0.0 -
8 Ms Patty 77 76 67 +9 9.0 -
99 Bosnay - 74 65 +9 7.0 -
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