Official NHA Assessment

Race 4: TABGOLD SCORE 10 FM 91 DIVIDED HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Zinikele
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
4 / 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    Perilla              5    57.5    1    0.00     0.0   86    84           86    +0
2    Miss Paget           4    52.0    2    1.90     5.0   76    66           66    -10
3    Zinikele             5    61.0    3    2.70     0.0   93    93           93    +0
4    Littleblackvelvet    4    50.5    4    3.50     5.0   81    61           71    -10
5    Dollar A Dime        4    53.5    5    3.90     5.0   77    67           67    -10
6    Simple Simple        5    56.5    6    4.50     0.0   84    82           82    -2
7    Mauritania           2    55.5    7    8.20     0.0   82    80           80    -2
99   Red Roses Too        5    58.0    99   0.00     0.0   -     85           85    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Perilla 86 89 86 +3 0.0 -
2 Miss Paget 76 71 66 +5 5.0 -
3 Zinikele Line 93 89 93 -4 0.0
4 Littleblackvelvet 81 77 71 +6 5.0 -
5 Dollar A Dime 77 74 67 +7 5.0 -
6 Simple Simple 84 71 82 -11 0.0 -
7 Mauritania 82 74 80 -6 0.0 -
99 Red Roses Too - 82 85 -3 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