Official NHA Assessment

Race 5: COMPUTAFORM ONLINE MR 88 HANDICAP (Open)

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Line Horse
Exceeder
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
7 / 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    Dubai Lights         4    54.0    1    0.00     3.0   76    75           76    +0
2    Global Ally          6    53.0    2    0.10     0.0   86    79           79    -7
3    Exceeder             4    53.5    3    3.35     3.0   75    75           75    +0
4    Let It Burn          3    54.0    4    4.55     6.0   88    69           78    -10
5    Jaimala              4    55.0    5    4.65     3.0   79    77           77    -2
6    Saint West           6    57.0    6    7.65     0.0   82    87           87    +5
7    Kariba Hall          4    60.0    7    9.90     3.0   89    87           87    -2
8    Coup De Main         4    52.5    8    10.40    3.0   74    72           72    -2
9    Swift Surprise       6    59.5    9    11.40    0.0   87    92           92    +5
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Dubai Lights 76 77 76 +1 3.0 -
2 Global Ally 86 97 79 +18 0.0 -
3 Exceeder Line 75 59 75 -16 3.0
4 Let It Burn 88 89 78 +11 6.0 -
5 Jaimala 79 101 77 +24 3.0 -
6 Saint West 82 80 87 -7 0.0 -
7 Kariba Hall 89 86 87 -1 3.0 -
8 Coup De Main 74 62 72 -10 3.0 -
9 Swift Surprise 87 82 92 -10 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