Official NHA Assessment

Race 5: TABGOLD SCORE6 SCORE10 FM 84 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Capetown Beauty
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
8 / 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    Let's Not Linger     4    58.5    1    0.00     3.5   81    87           81    +0
2    Lillybelle           6    57.0    2    0.30     0.0   82    96           96    +14
3    Capetown Beauty      3    61.0    3    2.90     7.0   87    87           87    +0
4    Starboard            4    57.5    4    3.95     3.5   78    86           86    +8
5    Aquae Sulis          5    60.5    5    4.75     0.0   85    98           98    +13
6    Let It Snow          2    54.0    6    8.25     0.0   86    85           85    -1
7    Just Virginia        2    52.0    7    9.15     0.0   74    81           81    +7
99   Lady Tiptree         3    57.5    99   0.00     7.0   -     78           78    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Let's Not Linger 81 87 81 +6 3.5 -
2 Lillybelle 82 73 96 -23 0.0 -
3 Capetown Beauty Line 87 76 87 -11 7.0
4 Starboard 78 76 86 -10 3.5 -
5 Aquae Sulis 85 69 98 -29 0.0 -
6 Let It Snow 86 61 85 -24 0.0 -
7 Just Virginia 74 56 81 -25 0.0 -
99 Lady Tiptree - 68 78 -10 7.0 -
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