Official NHA Assessment

Race 6: BETWAY NATIONAL COLOUR STAKES (Listed) (For Fillies and Mares)

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Line Horse
Troppo Veloce
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
8 / 10
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    Ice Star             2    58.5    1    0.00     5.0   107   107          107   +0
2    Elegant Ice          4    55.5    2    0.25     9.0   101   93           93    -8
3    Almond Sea           3    55.0    3    1.25     7.5   110   95           100   -10
4    Troppo Veloce        2    58.5    4    2.75     5.0   107   107          107   +0
5    Captain's Christy    4    53.5    5    4.00     9.0   97    89           89    -8
6    Exchange Student     4    58.0    6    4.75     9.0   106   98           98    -8
7    Sorceress Supreme    3    52.0    7    6.75     7.5   98    89           89    -9
8    The Navy Lark        4    52.0    8    7.25     9.0   79    86           86    +7
9    Time Fo Orchids      5    60.0    9    7.75     0.0   110   120          120   +10
10   Mist In Scotland     2    52.0    10   11.75    5.0   91    94           94    +3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Ice Star 107 112 107 +5 5.0 -
2 Elegant Ice 101 108 93 +15 9.0 -
3 Almond Sea 110 119 100 +19 7.5 -
4 Troppo Veloce Line 107 104 107 -3 5.0
5 Captain's Christy 97 95 89 +6 9.0 -
6 Exchange Student 106 104 98 +6 9.0 -
7 Sorceress Supreme 98 98 89 +9 7.5 -
8 The Navy Lark 79 74 86 -12 9.0 -
9 Time Fo Orchids 110 109 120 -11 0.0 -
10 Mist In Scotland 91 77 94 -17 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