Official NHA Assessment

Race 8: ARTHUR HAVERGAL, JACOB KALT, MICHAEL COETZEE FM 86 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Tinder Dry
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
0 / 11
Within 2 points
Significant Diffs
11 / 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    Ululate              4    61.5    1    0.00     1.5   89    97           89    +0
2    Tinder Dry           3    53.0    2    1.40     3.5   79    79           79    +0
3    Franklin             5    56.5    3    2.90     0.0   79    92           92    +13
4    Stunning Kitten      5    52.5    4    3.40     0.0   70    83           83    +13
5    Saragon              7    61.0    5    5.40     0.0   88    99           99    +11
6    Castle Durrow        4    57.0    6    5.60     1.5   80    88           88    +8
7    Woman Of Substance   3    56.5    7    5.80     3.5   86    83           83    -3
8    Eternal Life         3    56.0    8    5.85     3.5   88    82           82    -6
9    Coral Dawn           3    52.0    9    7.45     3.5   76    74           74    -2
10   La Luvia             4    60.0    10   7.65     1.5   89    94           94    +5
11   Just Fabulous        3    56.5    11   16.15    3.5   86    83           83    -3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Ululate 89 80 89 -9 1.5 -
2 Tinder Dry Line 79 66 79 -13 3.5
3 Franklin 79 80 92 -12 0.0 -
4 Stunning Kitten 70 66 83 -17 0.0 -
5 Saragon 88 86 99 -13 0.0 -
6 Castle Durrow 80 71 88 -17 1.5 -
7 Woman Of Substance 86 62 83 -21 3.5 -
8 Eternal Life 88 88 82 +6 3.5 -
9 Coral Dawn 76 67 74 -7 3.5 -
10 La Luvia 89 71 94 -23 1.5 -
11 Just Fabulous 86 76 83 -7 3.5 -
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