Official NHA Assessment

Race 5: TABGOLD SCORE6 AND SCORE10 FM 78 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Sting Ray
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
3 / 9
Within 2 points
Significant Diffs
4 / 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    Our Emily            3    55.5    1    0.00     3.0   72    69           72    +0
2    Certainly            2    61.5    2    0.10     2.0   85    83           83    -2
3    Sting Ray            3    59.0    3    0.60     3.0   76    76           76    +0
4    Russian Doll         2    60.0    4    0.70     2.0   85    80           80    -5
5    Candy For My Mommy   3    52.0    5    1.50     3.0   61    62           62    +1
6    Princess Tea         3    60.5    6    4.30     3.0   79    79           79    +0
7    Fashion Mistress     3    53.5    7    5.80     3.0   69    65           65    -4
8    HereInAfter          4    57.0    8    7.00     3.5   72    71           71    -1
99   Magicallee           4    53.0    99   0.00     3.5   -     63           63    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Our Emily 72 87 72 +15 3.0 -
2 Certainly 85 80 83 -3 2.0 -
3 Sting Ray Line 76 73 76 -3 3.0
4 Russian Doll 85 93 80 +13 2.0 -
5 Candy For My Mommy 61 52 62 -10 3.0 -
6 Princess Tea 79 77 79 -2 3.0 -
7 Fashion Mistress 69 56 65 -9 3.0 -
8 HereInAfter 72 72 71 +1 3.5 -
99 Magicallee - 65 63 +2 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