Official NHA Assessment

Race 3: www.tabgold.co.za FM 66 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
English Primrose
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 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    Off Limits           3    61.0    1    0.00     9.0   70    63           70    +0
2    English Primrose     3    57.0    2    1.30     9.0   60    60           60    +0
3    Lady Is A Champ      2    57.0    3    1.70     0.0   60    78           78    +18
4    Top Ten              4    48.0    4    4.70     5.0   50    46           46    -4
5    Sacred Lily          6    55.5    5    5.20     0.0   60    70           70    +10
6    Canford Queen        3    61.5    6    11.10    9.0   71    64           64    -7
7    Elusive Belle        4    55.0    7    15.10    5.0   66    59           59    -7
99   Pink Diamond         6    60.0    99   0.00     0.0   -     79           79    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Off Limits 70 73 70 +3 9.0 -
2 English Primrose Line 60 58 60 -2 9.0
3 Lady Is A Champ 60 57 78 -21 0.0 -
4 Top Ten 50 50 46 +4 5.0 -
5 Sacred Lily 60 52 70 -18 0.0 -
6 Canford Queen 71 59 64 -5 9.0 -
7 Elusive Belle 66 51 59 -8 5.0 -
99 Pink Diamond - 60 79 -19 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