Official NHA Assessment

Race 1: OPEN A TABGOLD ACCOUNT - 031 314 1874 MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Freedom Square
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
1 / 12
Within 2 points
Significant Diffs
8 / 12
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    Dame Mazona          2    57.0    1    0.00     0.0   75    73           73    -2
2    Lady Greensleeves    2    60.0    2    0.90     0.0   64    83           83    +19
3    Ocean Palace         3    57.0    3    2.10     8.5   -     59           59    +59
4    Freedom Square       3    60.0    4    2.60     8.5   64    64           64    +0
5    Silken Lace          2    60.0    5    6.00     0.0   48    79           79    +31
6    Joy To The World     2    60.0    6    6.50     0.0   49    79           79    +30
7    Bighairduncare       2    53.0    7    10.00    0.0   -     65           65    +65
8    Soprano              2    57.0    8    14.70    0.0   -     73           73    +73
9    Meldiva Gold         3    57.0    9    15.70    8.5   -     56           56    +56
10   Predators Beauty     3    57.0    10   27.60    8.5   -     56           56    +56
99   Madame Zee           3    60.0    99   0.00     8.5   -     62           62    +0
99   Lady Lennox          2    57.0    99   0.00     0.0   -     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 Dame Mazona 75 68 73 -5 0.0 -
2 Lady Greensleeves 64 63 83 -20 0.0 -
3 Ocean Palace - 63 59 +4 8.5 -
4 Freedom Square Line 64 63 64 -1 8.5
5 Silken Lace 48 54 79 -25 0.0 -
6 Joy To The World 49 45 79 -34 0.0 -
7 Bighairduncare - 53 65 -12 0.0 -
8 Soprano - 48 73 -25 0.0 -
9 Meldiva Gold - 52 56 -4 8.5 -
10 Predators Beauty - 44 56 -12 8.5 -
99 Madame Zee - 69 62 +7 8.5 -
99 Lady Lennox - 63 73 -10 0.0 -
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