Official NHA Assessment

Race 5: RACEHORSE OWNERS ASSOCIATION PINNACLE STAKES (F & M) (For Fillies and Mares)

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Line Horse
Franca
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
1 / 11
Within 2 points
Significant Diffs
6 / 11
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    Gillian Anne         4    58.0    1    0.00     2.0   89    95           95    +6
2    Glacier Gold         4    62.0    2    0.75     2.0   104   103          103   -1
3    Red Berry            4    55.0    3    0.80     2.0   77    89           89    +12
4    Franca               3    62.0    4    1.05     1.5   104   104          104   +0
5    Persica              5    52.0    5    1.15     0.0   59    87           87    +28
6    Sound Check          3    61.0    6    1.25     1.5   97    102          102   +5
7    Green Light Gal      4    55.5    7    1.75     2.0   94    90           90    -4
8    Purple Merchant      4    59.5    8    3.25     2.0   94    98           98    +4
9    Crimson Causeway     3    59.5    9    5.00     1.5   96    99           99    +3
10   Miss Nibbles         3    59.5    10   5.25     1.5   94    99           99    +5
11   Victoria Tower       5    56.5    11   6.50     0.0   85    96           96    +11
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Gillian Anne 89 90 95 -5 2.0 -
2 Glacier Gold 104 104 103 +1 2.0 -
3 Red Berry 77 95 89 +6 2.0 -
4 Franca Line 104 90 104 -14 1.5
5 Persica 59 48 87 -39 0.0 -
6 Sound Check 97 79 102 -23 1.5 -
7 Green Light Gal 94 93 90 +3 2.0 -
8 Purple Merchant 94 94 98 -4 2.0 -
9 Crimson Causeway 96 93 99 -6 1.5 -
10 Miss Nibbles 94 95 99 -4 1.5 -
11 Victoria Tower 85 84 96 -12 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