Official NHA Assessment

Race 8: JOIN THE THRILL www.capeturfclub.co.za CLASS 4 (Open. Benchmark at 60.0kg = 80)

Back to Race
Line Horse
Arctic Wizard
Reference for assessment
Exact Matches
0 / 13
Calculated = Official
Close Matches
0 / 13
Within 2 points
Significant Diffs
12 / 13
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Kaiboy               2    58.0    1    0.00     0.0   90    101          96    +6
2    Mon Petit Cherie     2    57.0    2    0.50     0.0   88    104          104   +16
3    Arctic Wizard        3    55.5    3    1.75     7.0   85    85           85    +0
4    Grand Bay            2    57.0    4    2.05     0.0   75    102          102   +27
5    Monumental           2    57.0    5    2.35     0.0   75    101          101   +26
6    King Of Spin         3    61.0    6    2.55     7.0   83    95           95    +12
7    Spirit's Unite       2    54.5    7    2.85     0.0   70    96           96    +26
8    Sooty                4    60.0    8    2.95     4.5   81    98           98    +17
9    O'Tenikwa            3    58.5    9    3.05     7.0   91    90           90    -1
10   Maphaka              2    60.0    10   4.05     0.0   94    106          106   +12
99   Peregrine Falcon     4    55.5    99   0.00     4.5   -     87           87    +0
99   Petteia              2    53.5    99   0.00     0.0   -     92           92    +0
99   Kelp Forest          5    58.5    99   0.00     0.0   -     102          102   +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Kaiboy 90 108 96 +12 0.0 -
2 Mon Petit Cherie 88 118 104 +14 0.0 -
3 Arctic Wizard Line 85 110 85 +25 7.0
4 Grand Bay 75 74 102 -28 0.0 -
5 Monumental 75 71 101 -30 0.0 -
6 King Of Spin 83 91 95 -4 7.0 -
7 Spirit's Unite 70 70 96 -26 0.0 -
8 Sooty 81 75 98 -23 4.5 -
9 O'Tenikwa 91 121 90 +31 7.0 -
10 Maphaka 94 87 106 -19 0.0 -
99 Peregrine Falcon - 74 87 -13 4.5 -
99 Petteia - 50 92 -42 0.0 -
99 Kelp Forest - 81 102 -21 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