Official NHA Assessment

Race 5: Bet with Colossus exclusive on www.tote.co.za CLASS 4 (Open. Benchmark at 60.0kg = 82)

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Line Horse
Jazz Festival
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
1 / 11
Within 2 points
Significant Diffs
6 / 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    Numzaan              2    56.5    1    0.00     0.0   75    72           72    -3
2    Industrialstrength   4    60.0    2    1.20     3.0   82    77           77    -5
3    Jazz Festival        5    55.5    3    2.10     0.0   73    73           73    +0
4    White Seahorse       2    59.0    4    2.35     0.0   80    79           79    -1
5    Thunderbird          4    55.5    5    3.40     3.0   72    65           65    -7
6    Gotta Go Eddie       2    58.5    6    3.70     0.0   91    77           81    -10
7    Send Me              3    51.0    7    4.45     6.0   67    49           57    -10
8    Spectacular          3    58.0    8    4.50     6.0   78    63           68    -10
9    Global Movement      6    51.5    9    4.90     0.0   70    62           62    -8
10   World Of Royalty     2    55.5    10   7.50     0.0   85    70           75    -10
99   Royal Sword          2    53.5    99   0.00     0.0   -     66           66    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Numzaan 75 79 72 +7 0.0 -
2 Industrialstrength 82 82 77 +5 3.0 -
3 Jazz Festival Line 73 70 73 -3 0.0
4 White Seahorse 80 81 79 +2 0.0 -
5 Thunderbird 72 70 65 +5 3.0 -
6 Gotta Go Eddie 91 93 81 +12 0.0 -
7 Send Me 67 64 57 +7 6.0 -
8 Spectacular 78 76 68 +8 6.0 -
9 Global Movement 70 65 62 +3 0.0 -
10 World Of Royalty 85 86 75 +11 0.0 -
99 Royal Sword - 87 66 +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