Official NHA Assessment

Race 5: SOCCER 13 FM 66 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Drive By
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
5 / 8
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    Spirited Flight      5    56.0    1    0.00     0.0   58    58           58    +0
2    Purple Flower        3    58.5    2    0.80     8.5   63    46           53    -10
3    Drive By             6    58.0    3    1.70     0.0   62    62           62    +0
4    Swiss Paradise       3    56.5    4    3.00     8.5   59    42           49    -10
5    Perfect Trust        7    55.5    5    3.10     0.0   57    57           57    +0
6    Blush Of Dawn        8    54.5    6    3.30     0.0   63    55           55    -8
7    Edge Of Tomorrow     3    60.0    7    6.70     8.5   77    49           67    -10
8    Roy Taking Off       4    53.5    8    15.40    10.0  61    33           51    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Spirited Flight 58 61 58 +3 0.0 -
2 Purple Flower 63 74 53 +21 8.5 -
3 Drive By Line 62 68 62 +6 0.0
4 Swiss Paradise 59 60 49 +11 8.5 -
5 Perfect Trust 57 50 57 -7 0.0 -
6 Blush Of Dawn 63 64 55 +9 0.0 -
7 Edge Of Tomorrow 77 63 67 -4 8.5 -
8 Roy Taking Off 61 54 51 +3 10.0 -
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