Official NHA Assessment

Race 6: TAB TELEBET 0861 000 822 MR 76 HANDICAP (Open)

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Line Horse
Var Park
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
4 / 10
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    Address The Nation   3    58.0    1    0.00     7.5   87    57           87    +0
2    Sakhala Is'Cathulo   3    58.5    2    0.20     7.5   73    58           63    -10
3    Var Park             5    60.5    3    2.75     0.0   77    77           77    +0
4    Johnny Appleseed     2    60.5    4    4.75     5.0   87    67           77    -10
5    In The Ether         6    56.0    5    5.00     0.0   68    68           68    +0
6    Autumn Var           3    58.0    6    5.05     7.5   72    57           62    -10
7    Axel Collins         5    53.5    7    5.75     0.0   63    63           63    +0
8    Sea Shanty           4    57.5    8    8.75     9.0   76    53           66    -10
9    Pendragon            5    57.5    9    11.00    0.0   71    71           71    +0
10   Zafar                3    58.5    10   16.00    7.5   83    58           73    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Address The Nation 87 93 87 +6 7.5 -
2 Sakhala Is'Cathulo 73 66 63 +3 7.5 -
3 Var Park Line 77 87 77 +10 0.0
4 Johnny Appleseed 87 90 77 +13 5.0 -
5 In The Ether 68 63 68 -5 0.0 -
6 Autumn Var 72 67 62 +5 7.5 -
7 Axel Collins 63 55 63 -8 0.0 -
8 Sea Shanty 76 71 66 +5 9.0 -
9 Pendragon 71 73 71 +2 0.0 -
10 Zafar 83 78 73 +5 7.5 -
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