Official NHA Assessment

Race 4: BLOOMHILL STUD KWAZULU-NATAL BREEDERS 1200 (For all KZN Breeders Series Qualifying Horses (Non-Blk Type))

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Line Horse
Parmenion
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
7 / 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    Proud Master         3    60.0    1    0.00     2.0   97    85           85    -12
2    Mr Henley            2    56.0    2    0.05     1.0   83    79           79    -4
3    Parmenion            5    56.0    3    1.75     0.0   81    81           81    +0
4    Russian Doll         2    55.5    4    2.75     1.0   90    78           80    -10
5    Magic Tattoo         5    62.0    5    4.35     0.0   103   93           93    -10
6    Teerex               4    55.0    6    5.55     2.5   79    74           74    -5
7    Mvulazana            3    54.5    7    5.75     2.0   85    74           75    -10
8    Crested Eagle        3    51.5    8    6.55     2.0   62    68           68    +6
9    Plettenberg          3    54.0    9    10.95    2.0   74    73           73    -1
99   Convocation          5    57.5    99   0.00     0.0   -     84           84    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Proud Master 97 97 85 +12 2.0 -
2 Mr Henley 83 82 79 +3 1.0 -
3 Parmenion Line 81 78 81 -3 0.0
4 Russian Doll 90 93 80 +13 1.0 -
5 Magic Tattoo 103 93 93 ✓ Match 0.0 -
6 Teerex 79 66 74 -8 2.5 -
7 Mvulazana 85 82 75 +7 2.0 -
8 Crested Eagle 62 51 68 -17 2.0 -
9 Plettenberg 74 59 73 -14 2.0 -
99 Convocation - 94 84 +10 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