Official NHA Assessment

Race 4: COMPUTAFORM FM 64 APPRENTICE HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Pick A Lily
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
3 / 12
Within 2 points
Significant Diffs
8 / 12
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    Samoa                10   56.5    1    0.00     0.0   62    69           62    +0
2    Brooklyn Bridge      4    55.5    2    6.50     6.0   60    55           55    -5
3    Sabrina Fairchild    4    54.0    3    6.75     6.0   60    52           52    -8
4    Pick A Lily          4    57.5    4    7.00     6.0   59    59           59    +0
5    Theroseofbecharre    3    57.0    5    7.25     5.0   70    60           60    -10
6    Twelve Oaks          7    59.0    6    8.00     0.0   62    74           74    +12
7    Dancing Dora         6    56.0    7    8.50     0.0   71    68           68    -3
8    Eastern Belle        3    56.5    8    9.50     5.0   72    59           62    -10
9    Nymeria              5    49.5    9    10.00    0.0   51    55           55    +4
10   Fantasy Flower       4    58.0    10   12.25    6.0   63    60           60    -3
11   Flash Rock           4    53.0    11   14.25    6.0   58    50           50    -8
12   Snow Symphony        4    58.0    12   28.25    6.0   68    60           60    -8
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Samoa 62 64 62 +2 0.0 -
2 Brooklyn Bridge 60 60 55 +5 6.0 -
3 Sabrina Fairchild 60 60 52 +8 6.0 -
4 Pick A Lily Line 59 57 59 -2 6.0
5 Theroseofbecharre 70 66 60 +6 5.0 -
6 Twelve Oaks 62 55 74 -19 0.0 -
7 Dancing Dora 71 53 68 -15 0.0 -
8 Eastern Belle 72 69 62 +7 5.0 -
9 Nymeria 51 49 55 -6 0.0 -
10 Fantasy Flower 63 53 60 -7 6.0 -
11 Flash Rock 58 51 50 +1 6.0 -
12 Snow Symphony 68 50 60 -10 6.0 -
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