Official NHA Assessment

Race 9: RACING240 FM 80 APPRENTICE DIVIDED HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Ringa Ringa Roses
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
3 / 9
Within 2 points
Significant Diffs
5 / 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    The Mightiest        3    54.0    1    0.00     6.0   68    63           68    +0
2    Ringa Ringa Roses    2    57.5    2    0.40     0.0   87    87           87    +0
3    Grace's Kiss         3    51.5    3    0.50     6.0   83    63           73    -10
4    Northern Kitten      3    49.5    4    0.90     6.0   58    58           58    +0
5    Opera Fan            2    51.5    5    3.10     0.0   80    72           72    -8
6    Pretty Analia        5    52.0    6    3.90     0.0   72    72           72    +0
7    Way To Burn          3    53.5    7    4.70     6.0   75    62           65    -10
8    Princess Keira       2    53.5    8    6.20     0.0   87    74           77    -10
9    Back From War        2    57.5    9    8.30     0.0   92    82           82    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 The Mightiest 68 70 68 +2 6.0 -
2 Ringa Ringa Roses Line 87 87 87 ✓ Match 0.0
3 Grace's Kiss 83 82 73 +9 6.0 -
4 Northern Kitten 58 67 58 +9 6.0 -
5 Opera Fan 80 81 72 +9 0.0 -
6 Pretty Analia 72 61 72 -11 0.0 -
7 Way To Burn 75 66 65 +1 6.0 -
8 Princess Keira 87 87 77 +10 0.0 -
9 Back From War 92 86 82 +4 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