Official NHA Assessment

Race 8: BETWAY SUMMER CUP 29 NOVEMBER FM 71 APPRENTICE DIVIDED HANDICAP (F & M) (Fillies & Mares)

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Line Horse
Instant Attraction
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 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    Artic Silver         3    55.5    1    0.00     9.0   72    63           72    +0
2    Instant Attraction   3    55.0    2    1.25     9.0   66    66           66    +0
3    Hollywood Madam      4    54.0    3    2.50     5.0   67    70           70    +3
4    Pomozelous           3    52.5    4    2.60     9.0   64    59           59    -5
5    The Mightiest        3    60.0    5    6.00     9.0   73    72           72    -1
6    Count Your Chances   5    48.0    6    8.30     0.0   53    66           66    +13
7    Bold Action          2    55.5    7    8.70     0.0   85    81           81    -4
8    Hopscotch            2    54.0    8    8.90     0.0   82    78           78    -4
9    Kiss Of Fire         5    54.5    9    15.00    0.0   68    79           79    +11
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Artic Silver 72 77 72 +5 9.0 -
2 Instant Attraction Line 66 60 66 -6 9.0
3 Hollywood Madam 67 65 70 -5 5.0 -
4 Pomozelous 64 62 59 +3 9.0 -
5 The Mightiest 73 70 72 -2 9.0 -
6 Count Your Chances 53 51 66 -15 0.0 -
7 Bold Action 85 62 81 -19 0.0 -
8 Hopscotch 82 66 78 -12 0.0 -
9 Kiss Of Fire 68 68 79 -11 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