Official NHA Assessment

Race 4: www.tabgold.co.za FM 85 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
All Aglow
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
5 / 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    Aquae Sulis          5    59.5    1    0.00     0.0   84    86           84    +0
2    Silver Maria         5    56.5    2    0.40     0.0   78    87           87    +9
3    All Aglow            4    54.5    3    1.40     3.0   75    75           75    +0
4    Top Me Up Holly      4    57.5    4    2.60     3.0   86    80           80    -6
5    More Than A Dime     6    54.5    5    4.60     0.0   74    77           77    +3
6    Integrity            5    57.5    6    7.60     0.0   80    82           82    +2
7    Maria Corolina       4    55.5    7    7.65     3.0   77    72           72    -5
99   Jacqueline           6    57.0    99   0.00     0.0   -     81           81    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Aquae Sulis 84 69 84 -15 0.0 -
2 Silver Maria 78 95 87 +8 0.0 -
3 All Aglow Line 75 71 75 -4 3.0
4 Top Me Up Holly 86 98 80 +18 3.0 -
5 More Than A Dime 74 73 77 -4 0.0 -
6 Integrity 80 90 82 +8 0.0 -
7 Maria Corolina 77 81 72 +9 3.0 -
99 Jacqueline - 83 81 +2 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