Official NHA Assessment

Race 7: BETWAY FM 73 DIVIDED HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Shampimpi
Reference for assessment
Exact Matches
2 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
6 / 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    Play With Fire       4    56.5    1    0.00     5.0   67    64           67    +0
2    Twostep Queen        2    59.0    2    0.10     0.0   87    79           79    -8
3    Shampimpi            4    58.0    3    1.75     5.0   70    70           70    +0
4    It's Her Way         3    56.0    4    2.75     8.0   81    59           71    -10
5    Northern Kitten      3    54.0    5    3.85     8.0   62    54           54    -8
6    Willowild            2    56.0    6    9.00     0.0   81    73           73    -8
7    Easy On Me           3    58.5    7    21.00    8.0   71    62           62    -9
99   Free In Seattle      3    56.0    99   0.00     8.0   -     57           57    +0
99   Flamboyant Flyer     4    60.0    99   0.00     5.0   -     71           71    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Play With Fire 67 79 67 +12 5.0 -
2 Twostep Queen 87 101 79 +22 0.0 -
3 Shampimpi Line 70 70 70 ✓ Match 5.0
4 It's Her Way 81 91 71 +20 8.0 -
5 Northern Kitten 62 67 54 +13 8.0 -
6 Willowild 81 73 73 ✓ Match 0.0 -
7 Easy On Me 71 67 62 +5 8.0 -
99 Free In Seattle - 89 57 +32 8.0 -
99 Flamboyant Flyer - 77 71 +6 5.0 -
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