Official NHA Assessment

Race 7: BETWAY SWALLOW STAKES (Listed) (For 3 year-old Fillies)

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Line Horse
Malibu
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
7 / 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    Elegantrix           2    60.0    1    0.00     3.5   104   96           96    -8
2    Rifle Queen          2    58.0    2    1.50     3.5   96    92           92    -4
3    Season's Greetings   2    58.0    3    2.40     3.5   81    92           92    +11
4    Perfect Miracle      3    58.0    4    3.40     5.0   95    89           89    -6
5    Malibu               2    58.0    5    4.50     3.5   92    92           92    +0
6    One Fine Winter      2    60.0    6    5.25     3.5   105   96           96    -9
7    Anchorage            2    58.0    7    8.75     3.5   101   92           92    -9
8    Jazz Pianist         2    58.0    8    9.45     3.5   85    92           92    +7
9    Taking A Risk        2    58.0    9    11.45    3.5   73    92           92    +19
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Elegantrix 104 106 96 +10 3.5 -
2 Rifle Queen 96 105 92 +13 3.5 -
3 Season's Greetings 81 87 92 -5 3.5 -
4 Perfect Miracle 95 96 89 +7 5.0 -
5 Malibu Line 92 92 92 ✓ Match 3.5
6 One Fine Winter 105 105 96 +9 3.5 -
7 Anchorage 101 99 92 +7 3.5 -
8 Jazz Pianist 85 79 92 -13 3.5 -
9 Taking A Risk 73 70 92 -22 3.5 -
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