Official NHA Assessment

Race 8: BOOK FOR JULY DAY IN JOZI 0116811796 MIDDLE STAKES (For horses with nett rating of 101 and below)

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Line Horse
Breeze Over
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
4 / 11
Within 2 points
Significant Diffs
5 / 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    Raiseahallelujah     7    62.0    1    0.00     0.0   99    95           95    -4
2    Breeze Over          5    60.0    2    0.40     0.0   97    97           97    +0
3    Mambo Come Tesio     3    54.0    3    3.50     3.0   85    75           75    -10
4    Vesuvio              5    48.0    4    3.75     0.0   79    69           69    -10
5    Arlington Action     6    52.0    5    5.25     0.0   80    75           75    -5
6    I Am Regal           5    50.0    6    7.50     0.0   80    71           71    -9
7    Jet Dynasty          3    54.0    7    7.60     3.0   85    73           75    -10
8    Prime Example        2    56.0    8    8.25     0.0   89    83           83    -6
9    Afraad               8    54.0    9    9.75     0.0   85    79           79    -6
10   Twenty Drachma's     4    56.0    10   12.75    1.0   92    81           82    -10
11   Absolute Value       3    56.0    11   19.75    3.0   87    77           77    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Raiseahallelujah 99 103 95 +8 0.0 -
2 Breeze Over Line 97 99 97 +2 0.0
3 Mambo Come Tesio 85 80 75 +5 3.0 -
4 Vesuvio 79 85 69 +16 0.0 -
5 Arlington Action 80 73 75 -2 0.0 -
6 I Am Regal 80 75 71 +4 0.0 -
7 Jet Dynasty 85 82 75 +7 3.0 -
8 Prime Example 89 93 83 +10 0.0 -
9 Afraad 85 79 79 ✓ Match 0.0 -
10 Twenty Drachma's 92 83 82 +1 1.0 -
11 Absolute Value 87 84 77 +7 3.0 -
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