Official NHA Assessment

Race 5: www.caperacing.co.za MIDDLE STAKES (For Horses with a nett rating of 105 and below)

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Line Horse
Top Quality
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
9 / 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    Top Quality          3    54.0    1    0.00     10.0  91    91           91    +0
2    Somerset Maugham     4    60.0    2    0.30     7.0   98    114          114   +16
3    Baratheon            3    55.0    3    0.80     10.0  90    97           97    +7
4    Arctic Drift         5    56.0    4    2.80     0.0   93    117          117   +24
5    Anse Lazio (AUS)     6    62.0    5    4.80     0.0   103   127          127   +24
6    Pack Leader          7    56.0    6    9.55     0.0   93    115          115   +22
7    Thefutureisbright    3    54.0    7    9.85     10.0  91    91           91    +0
8    Dubai Lights         4    54.0    8    11.10    7.0   87    97           97    +10
9    Sabina's Prodigy     4    56.0    9    14.10    7.0   92    101          101   +9
10   Northern Song        4    54.0    10   16.10    7.0   88    97           97    +9
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Top Quality Line 91 99 91 +8 10.0
2 Somerset Maugham 98 97 114 -17 7.0 -
3 Baratheon 90 106 97 +9 10.0 -
4 Arctic Drift 93 97 117 -20 0.0 -
5 Anse Lazio (AUS) 103 102 127 -25 0.0 -
6 Pack Leader 93 92 115 -23 0.0 -
7 Thefutureisbright 91 94 91 +3 10.0 -
8 Dubai Lights 87 77 97 -20 7.0 -
9 Sabina's Prodigy 92 91 101 -10 7.0 -
10 Northern Song 88 77 97 -20 7.0 -
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