Official NHA Assessment

Race 9: NEXT TURFFONTEIN RACEMEETING SATURDAY 7 FEBRUARY MIDDLE STAKES MR 85 HANDICAP (Open)

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Line Horse
Brave Viking
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
3 / 9
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    Tintin               3    55.0    1    0.00     3.0   75    70           75    +0
2    Brave Viking         5    53.0    2    2.50     0.0   74    74           74    +0
3    Global Impact        2    55.0    3    5.20     0.0   75    76           76    +1
4    Juniper Green        4    59.5    4    5.45     2.0   87    81           81    -6
5    Impact Investor      2    57.0    5    5.50     0.0   79    80           80    +1
6    Chieftain's Shield   4    56.5    6    8.75     2.0   78    75           75    -3
7    Coppola              4    59.0    7    11.75    2.0   83    80           80    -3
8    Jabari Thimba        2    55.5    8    17.00    0.0   84    77           77    -7
9    Ombudsman            3    59.0    9    38.25    3.0   83    78           78    -5
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Tintin 75 88 75 +13 3.0 -
2 Brave Viking Line 74 72 74 -2 0.0
3 Global Impact 75 74 76 -2 0.0 -
4 Juniper Green 87 87 81 +6 2.0 -
5 Impact Investor 79 77 80 -3 0.0 -
6 Chieftain's Shield 78 80 75 +5 2.0 -
7 Coppola 83 83 80 +3 2.0 -
8 Jabari Thimba 84 84 77 +7 0.0 -
9 Ombudsman 83 83 78 +5 3.0 -
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