Official NHA Assessment

Race 7: COMPUTAFORM ONLINE FM 72 APPRENTICE HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Rose Willow
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
0 / 11
Within 2 points
Significant Diffs
7 / 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    Cheringoma           3    56.0    1    0.00     4.0   77    64           77    +0
2    Dark Travel          4    58.5    2    1.10     2.0   69    77           77    +8
3    Rose Willow          4    49.5    3    1.25     2.0   59    59           59    +0
4    Ms Flower Power      4    54.5    4    1.75     2.0   64    68           68    +4
5    Louvain              6    56.0    5    2.25     0.0   69    75           75    +6
6    Letha                3    50.5    6    3.25     4.0   69    55           59    -10
7    Flying First Class   4    60.0    7    8.00     2.0   72    76           76    +4
8    Willow Lane          4    53.0    8    8.50     2.0   66    62           62    -4
9    DutchessBurnedette   4    51.5    9    9.00     2.0   63    59           59    -4
10   Kapama               6    48.0    10   13.50    0.0   53    56           56    +3
11   Full Royalty         3    55.5    11   17.00    4.0   74    63           64    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Cheringoma 77 69 77 -8 4.0 -
2 Dark Travel 69 72 77 -5 2.0 -
3 Rose Willow Line 59 48 59 -11 2.0
4 Ms Flower Power 64 61 68 -7 2.0 -
5 Louvain 69 66 75 -9 0.0 -
6 Letha 69 66 59 +7 4.0 -
7 Flying First Class 72 82 76 +6 2.0 -
8 Willow Lane 66 66 62 +4 2.0 -
9 DutchessBurnedette 63 64 59 +5 2.0 -
10 Kapama 53 51 56 -5 0.0 -
11 Full Royalty 74 54 64 -10 4.0 -
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