Official NHA Assessment

Race 3: VODACOM 2200 (Grade 3) (Handicap)

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Line Horse
Shango
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
4 / 11
Within 2 points
Significant Diffs
5 / 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    One Way Traffic      4    55.5    1    0.00     0.5   104   100          104   +0
2    Super Silvano        5    57.0    2    3.00     0.0   107   107          107   +0
3    Shango               5    59.0    3    3.30     0.0   111   111          111   +0
4    Chollima             6    52.5    4    3.50     0.0   102   98           98    -4
5    FireAlley            7    59.5    5    6.10     0.0   112   109          109   -3
6    Bold Fortune         4    56.0    6    7.90     0.5   105   101          101   -4
7    Flying Bull          4    54.0    7    11.70    0.5   101   97           97    -4
8    Crown Towers (AUS)   6    61.5    8    13.10    0.0   116   113          113   -3
9    Zillzaal             6    62.0    9    13.15    0.0   117   114          114   -3
10   Gainsford            4    53.5    10   15.15    0.5   100   96           96    -4
99   Airways Law          4    57.5    99   0.00     0.5   108   104          108   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 One Way Traffic 104 109 104 +5 0.5 -
2 Super Silvano 107 103 107 -4 0.0 -
3 Shango Line 111 105 111 -6 0.0
4 Chollima 102 85 98 -13 0.0 -
5 FireAlley 112 107 109 -2 0.0 -
6 Bold Fortune 105 83 101 -18 0.5 -
7 Flying Bull 101 98 97 +1 0.5 -
8 Crown Towers (AUS) 116 113 113 ✓ Match 0.0 -
9 Zillzaal 117 112 114 -2 0.0 -
10 Gainsford 100 88 96 -8 0.5 -
99 Airways Law 108 102 108 -6 0.5 -
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