Official NHA Assessment

Race 6: BOOK FOR JULY DAY IN JOZI 0116811796 FM 93 DIVIDED HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Heart Peaks
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
2 / 9
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    Elembee              5    54.0    1    0.00     0.0   81    82           81    +0
2    Heart Peaks          4    54.5    2    1.10     0.5   86    86           86    +0
3    Key Element          4    59.5    3    1.35     0.5   96    95           95    -1
4    Quiet Rebellion      3    52.5    4    3.00     2.0   76    77           77    +1
5    Littlemarysunshine   2    61.0    5    3.25     0.0   95    98           98    +3
6    Hillary Step         3    52.0    6    5.50     2.0   81    74           74    -7
7    Rosy Lemon           5    53.5    7    8.25     0.0   80    81           81    +1
8    Spring In Heaven     2    58.0    8    9.65     0.0   93    90           90    -3
9    Bonika               2    55.5    9    12.00    0.0   84    85           85    +1
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Elembee 81 77 81 -4 0.0 -
2 Heart Peaks Line 86 89 86 +3 0.5
3 Key Element 96 92 95 -3 0.5 -
4 Quiet Rebellion 76 74 77 -3 2.0 -
5 Littlemarysunshine 95 95 98 -3 0.0 -
6 Hillary Step 81 82 74 +8 2.0 -
7 Rosy Lemon 80 72 81 -9 0.0 -
8 Spring In Heaven 93 87 90 -3 0.0 -
9 Bonika 84 80 85 -5 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