Official NHA Assessment

Race 6: BOOK FOR JULY DAY IN JOZI 0116811796 MR 73 HANDICAP (Open)

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Line Horse
Coromandel
Reference for assessment
Exact Matches
2 / 10
Calculated = Official
Close Matches
3 / 10
Within 2 points
Significant Diffs
5 / 10
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    Nuclear Force        5    55.5    1    0.00     0.0   65    64           65    +0
2    Battleofbarberton    3    59.0    2    1.75     4.0   79    67           69    -10
3    Kadizora             4    59.5    3    2.75     1.5   80    72           72    -8
4    Coromandel           4    53.0    4    3.05     1.5   59    59           59    +0
5    Little Prince        3    60.0    5    3.15     4.0   73    68           68    -5
6    Teo Torriatte        4    56.0    6    3.20     1.5   73    65           65    -8
7    Royal Mazarin        4    58.5    7    3.80     1.5   70    69           69    -1
8    Kakiebos             3    57.0    8    4.60     4.0   75    60           65    -10
9    Go Dream Machine     3    48.0    9    5.10     4.0   50    41           41    -9
10   Jp Two Thousand      3    54.0    10   9.85     4.0   61    53           53    -8
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Nuclear Force 65 61 65 -4 0.0 -
2 Battleofbarberton 79 86 69 +17 4.0 -
3 Kadizora 80 72 72 ✓ Match 1.5 -
4 Coromandel Line 59 59 59 ✓ Match 1.5
5 Little Prince 73 73 68 +5 4.0 -
6 Teo Torriatte 73 94 65 +29 1.5 -
7 Royal Mazarin 70 70 69 +1 1.5 -
8 Kakiebos 75 75 65 +10 4.0 -
9 Go Dream Machine 50 52 41 +11 4.0 -
10 Jp Two Thousand 61 61 53 +8 4.0 -
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