Official NHA Assessment

Race 3: LUCKY FISH NEW FORTUNE MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Iona Castle
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
1 / 11
Within 2 points
Significant Diffs
7 / 11
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    Kubu                 3    60.0    1    0.00     5.0   -     73           6     +6
2    Iona Castle          3    60.0    2    2.00     5.0   76    76           76    +0
3    Taylor's Version     2    60.0    3    3.25     0.0   73    85           85    +12
4    Seven No Trump       2    60.0    4    4.25     0.0   78    84           84    +6
5    Little Nimbus        3    60.0    5    4.30     5.0   73    73           73    +0
6    Gimme The Power      2    60.0    6    5.55     0.0   70    83           83    +13
7    Red Taffety          2    60.0    7    6.55     0.0   79    83           83    +4
8    Love Her Madly       2    60.0    8    6.95     0.0   73    83           83    +10
9    Miss Smiley          3    60.0    9    7.15     5.0   73    73           73    +0
10   Mikoto               3    60.0    10   9.15     5.0   -     73           73    +73
99   Blue Lagoon          3    60.0    99   0.00     5.0   -     73           73    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Kubu - 92 6 +86 5.0 -
2 Iona Castle Line 76 79 76 +3 5.0
3 Taylor's Version 73 72 85 -13 0.0 -
4 Seven No Trump 78 83 84 -1 0.0 -
5 Little Nimbus 73 77 73 +4 5.0 -
6 Gimme The Power 70 69 83 -14 0.0 -
7 Red Taffety 79 77 83 -6 0.0 -
8 Love Her Madly 73 70 83 -13 0.0 -
9 Miss Smiley 73 65 73 -8 5.0 -
10 Mikoto - - 73 -73 5.0 -
99 Blue Lagoon - 78 73 +5 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