Official NHA Assessment

Race 5: TAB 4RACING APP MR 66 HANDICAP (Open)

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Line Horse
Nkandla Gold
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    Oriental Bouquet     4    52.5    1    0.00     9.0   51    51           51    +0
2    Nkandla Gold         4    61.5    2    0.05     9.0   69    69           69    +0
3    Lonely As A Cloud    3    62.5    3    0.65     7.5   71    74           74    +3
4    Tiger Storm          3    61.5    4    1.15     7.5   72    72           72    +0
5    Pacific              4    53.0    5    1.35     9.0   52    52           52    +0
6    In The Ether         6    61.5    6    3.15     0.0   69    87           87    +18
7    Michael Faraday      2    59.0    7    5.15     5.0   69    72           72    +3
8    Summer Shade         4    59.0    8    6.15     9.0   64    64           64    +0
99   Lady Limoncello      4    60.5    99   0.00     9.0   -     67           67    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Oriental Bouquet 51 56 51 +5 9.0 -
2 Nkandla Gold Line 69 63 69 -6 9.0
3 Lonely As A Cloud 71 71 74 -3 7.5 -
4 Tiger Storm 72 69 72 -3 7.5 -
5 Pacific 52 50 52 -2 9.0 -
6 In The Ether 69 63 87 -24 0.0 -
7 Michael Faraday 69 68 72 -4 5.0 -
8 Summer Shade 64 52 64 -12 9.0 -
99 Lady Limoncello - 65 67 -2 9.0 -
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